Improvised Star Trek
For ten years Improvised Star Trek explored the final frontier of comedy by turning Star Trek into an improv office comedy. Taking suggestions submitted on Twitter and Facebook, the cast (featuring some of Chicago’s top improvisors) creates a fully improvised episode detailing the adventures of the USS Sisyphus, a less enterprising starship. New episodes are posted every other week. Improvised Star Trek is a fan production. Star Trek is property of CBS.

Improvised Star Trek returns to the iO stage in January 2015, with an 8-week run of shows on Sundays at 8:30pm. Visit to reserve your tickets today!

Direct download: IST_bonus_trading_species.mp3
Category:extras -- posted at: 7:49pm CST

The Sisyphus accidentally happens upon the Borg during their quarterly fundraising drive and no one changes the station in time and pretty soon the crew starts thinking about how they've always meant to assimilate but just never really got around to it and maybe this year is the year to finally just shell out to help fund the really great antonistic activities that the Borg can always be relied on to produce every single day whether it's on your commute or during your workout or just while you're doing chores around the house. Plus, that tote bag!



Irene Marquette as Lt. Lady Cola

Leslie Nesbit as Borg Collective Members like You

Christopher Rathjen as Cdr. Corbomite Hayes

Nick Wagner as Lt. Ch'arles Lorem, Borg Drone

Matt Young as Captain Julius Baxter, En. Greg, Lt.Cdr. Urg


Improvised on August 24th 2014 from a suggestion by Gregory Gallager via Facebook.

Direct download: Ep_101_Borg_dot_org_v2.mp3
Category:episode -- posted at: 2:21pm CST

On November 23rd, 2014, we reached our 100th episode milstone and celebrated by inviting our fans to submit questions that they'd like to see answered about the adventures of the USS Sisyphus. We livestreamed the episode as we improvised it, and this is the audio of the event.

Many thanks to all of you for listening, and all the cast, crew, and guests who helped us to get 100!

Direct download: IST_ep_100-Mailbag_AUDIO.mp3
Category:episode -- posted at: 3:57am CST

On November 23rd, 2014, we reached our 100th episode milstone and celebrated by inviting our fans to submit questions that they'd like to see answered about the adventures of the USS Sisyphus. We livestreamed the episode as we improvised it, and this is the video of the event.

Many thanks to all of you for listening, and all the cast, crew, and guests who helped us to get 100!

Direct download: IST_ep_100-Mailbag.m4v
Category:episode -- posted at: 3:53am CST

Dr. Zonalzon's plan to navigate the holidays is a bit shakey.

Plus news for Novermber 29th, 2014



Sean Kelley as Blaknar the Magnificent

Mary Cait Walthall as Dr. Zarlene Zonalzon

Julia Weiss as Zuzan Zonalzon


Scene edited by Eric Scull



Live Show: Sundays 8:30 January 11th - March 1st, iO Theater!

This Zanksgiving we're zankful for all of you. 

Direct download: ISTBonus_20141129_Zearthquake.mp3
Category:extras -- posted at: 5:31pm CST

Larry and Zarlene look for a second chance on the USS Sisyphus.

Improvised August 3rd, 2014 from a suggestion by Sam Radion


Griffen Eckstein as Lt. Cdr. Fritz Fassbinder, Ensign Larry

Irene Marquette as Lt. Cdr. Lady Cola

Christopher Rathjen as Cdr. Corbomite Hayes

Nick Wagner as Lt. Ch'arles Lorem, Ensign Marcus, Cockney Bartender

Mary Cait Walthall as Dr. Zarlene Zonalzon  

Matt Young as Captain Julius Valentine Baxter, Emergency Medical Hologram
Direct download: IST99_EnsignsofTurboliftControl.mp3
Category:episode -- posted at: 1:45am CST

Fish murder spells something...well, its most just spells a pleasant conversation.


Plus news for 2014-11-11

Direct download: ISTBonus_Sisyfish20141111.mp3
Category:extras -- posted at: 7:43pm CST

Lt. Lady Cola take a vacation. The crew looks for love, in exactly right place to do. Like, one of the best places.

Improvised June 22, 2014 from Suggestion by Joe Redhead


Griffen Eckstein as Lt. Cmdr. Fritz Fassbinder, Ensign Leopold Lackey
Sean Kelley as Lt. Cmdr. Crick Watson, Shenay Host
Irene Marquette as Lt. Lady Cola
Alex Richmond as Ensign Twilight
Nick Wagner as Ensign Ch'arles Lorem
Matt Young as Captain Julius Valentine Baxter, Shenay Symbiote

Direct download: IST98_PerilsofOnlineSpaceDating.mp3
Category:episode -- posted at: 5:58pm CST

Captain Baxter tries to be the Space Master.


Plus news for 10/28/2014



Griffen Eckstein as LtCdr. Fritz Fassbinder, Ensign Leopold Lackey

Irene Marquette as Lt. Lady Cola

Matt Young as Captain Julius Valentine Baxter, Ensign Greg

Direct download: ISTBonus20141028_DilithiumDragons.mp3
Category:extras -- posted at: 1:11pm CST

Knowledge is power, but not as powerful a power as power over knowledge, when the USS Sisyphus encounter aliens rich in knowledge and low in power over knowledge. Baxter makes an enemy, and the Red Racers defend their title.

Improvised August 24th from a suggestion by Brian Sebby via Facebook.

Edited by Eric Scull.


Sean Kelley as Lt. Carl
Irene Marquette as Lt. Lady Cola, a Wikipedian
Leslie Nesbit as Marcnon the Wikipedian, Alan the Trivia Master
Christopher Rathjen as Cdr. Corbomite Hayes. Dr. F'gaut
Nick Wagner as Ensign Ch'arles Lorem
Matt Young as Cpt. Julius Valentine Baxter, En. Greg, "Captain" Owl, Cockney Bartender
Direct download: IST97_Return_of_the_Wikipedians.mp3
Category:episode -- posted at: 3:09pm CST

Captain Baxter sets a new goal. Lt. Cola picks a new destination. Ensign Lackey reveals a new relationship. Ensign Twilight ushers in a New Age.

Improvised June 22, 2014 from Suggestion by Carroll Cottingham


Griffen Eckstein as Lt. Cmdr. Fritz Fassbinder, Ensign Leopold Lackey
Sean Kelley as Lt. Cmdr. Crick Watson, Lt. Carl, Chucky
Irene Marquette as Lt. Lady Cola
Alex Richmond as Ensign Twilight
Nick Wagner as Ensign Ch'arles Lorem, Adm. Barbacoa
Matt Young as Captain Julius Valentine Baxter, Ensign Greg
Oklahoma Joe's BBQ Music from Down Home by Dustin Busch
Direct download: IST96_ThereinLiestheRub.mp3
Category:episode -- posted at: 2:03am CST

News about the monthly live show and the Improv Goblet Comedy Festival in Las Vegas on October 3rd and 4th. Plus a bonus scene with poop jokes!

Direct download: Bonus_09292014.mp3
Category:extras -- posted at: 10:30pm CST

The crew enjoys a nice brunch.


Improvised June 15, 2014 from a suggestion by Brian Selby via Facebook



Sean Kelly as Lt.Cdr. Crick Watson

Christopher Rathjen as Cdr. Corbomite Hayes

Brendan Stallings as Wayder

Nick Wager as En. Ch'arles lorem

Matt Young As Cpt. Julius V. Baxter


Edited by Eric Scull

Direct download: IST95_Operation_Brunch.mp3
Category:episode -- posted at: 11:01pm CST

Fritz runs afowl of the record industry, while Crick struggles to come to terms with the fleeting nature of love and wormholes.

Direct download: IST_ep_94_The_Fifth_Quadrant.mp3
Category:episode -- posted at: 8:16am CST

The search for a replacement doctor begins with a reptile and ends with a whole mess of pancakes.


Guest starring Brendan Stallings as Blake Ramirez.


Improvised on June 15th 2014. Title suggested by Eric Scull via Facebook.

Direct download: IST_Ep_93_Doctor_Dilithium.mp3
Category:episode -- posted at: 12:06pm CST

Kahless is having trouble at his part time gig.

Plus news for 2014-08-25

Nick Wagner as Kahless

Special Guest Leslie Nesbit as Customer

Matt Young as Manager

Direct download: ISTBonus20140825_KahlessShoeSource.mp3
Category:extras -- posted at: 3:43pm CST

The USS Sisyphus encounters a tranports ship in need of assistance.



Improvised April 5, 2014 from a suggestion by Joe Vincent.






Griffen Eckstein as Ensign Leopold Lackey, Lt. Son


Sean Kelley as Lt. Cmdr. Crick Watson, Lt. Carl, a Greg


Joe Phillips as Craig, a Greg


Christopher Rathjen as Cmdr. Corbomite Hayes, a Greg


Nick Wagner as Ensign Ch'arles Lorem, a Greg


Julia Weiss as Craigette, a Greg, Lt. Beyontrice


Matt Young as Captain Julius V. Baxter, Ensign Greg
Direct download: IST92_NoGoodDeed.mp3
Category:episode -- posted at: 8:36pm CST

Its the USS Sisyphus and vs. the USS Garcia in a war game, and salutations couldn't be higher.

Improvised April 6, 2014 from a suggestion by James Honey.


Sean Kelley as Lt. Cmdr. Crick Watson 
Chris Rathjen as Cmdr. Corbomite Hayes, Dr. F'got
Nick Wagner as Ensign Ch'arles Lorem
Matt Young as Captain Julius Valentine Baxter, Ensign Greg, Commander Nightcrawler(nee Treeheart nee Sorak)
Griffen Eckstein as Ensign Lackey, Lt. Cmdr. Fritz Fassbinder, Guitar Center Guy, Lt. Cmdr. Ritz Rassbinder
Julia Weiss as Lt. Rita King, Ensign Beyontrix
Joe Phillips as Captain Japhy Whitman, Unnamed Bartender, Ensign Smelt
Direct download: IST91_TheLongHello.mp3
Category:episode -- posted at: 12:12am CST

IST OG Joe Phillips guest stars in this week's bonus scene: Boartender. Listen in the coming woeeks for the full episode(s?) we recorded when Joe last visited Chicago.

Due to the general meddling of Life, this week's episode will be delayed until Sunday the 27th. Then the next episode will be release two weeks after that, et. cetera.

July's live show is this Friday (the 25th) at the Public House theatre in Chicago. If you order your tickets in advance, you'll receive a link to download a special previously-unreleased episode of the podcast! We hope to see you there!

Direct download: IST_Bonus_Boartender_v3.mp3
Category:extras -- posted at: 10:21pm CST

This month's live show will be Friday July 25th at 10pm at the Public House Theater. Come one, come all!!!

Many thanks to the women of Improvised Jane Austen for letting us land a shuttlecraft in Regency-era England this week! Improvised Jane Austen's Alex Richmond is featured in today's bonus scene, entitled Baxter's Millions.

Direct download: IST_July_14_Bonus_.mp3
Category:extras -- posted at: 11:41pm CST

Worlds collide as the Sisyphus encounters an alternate Earth with an alternate mad scientist and alternate snow. Which is different from punk snow.

Improvised on May 10th, 2014. Title suggested by Soskia Slottje via Facebook.

Featuring Mark Soloff and Ryan Schile of Our Fair City, a post-apocalyptic sci-fi epic.

This episodes cover art by Our Fair City artist Dann Tincher

 For more, visit

Direct download: IST_Ep_90_The_Past_isnt_What_it_Used_to_Be.mp3
Category:episode -- posted at: 9:55am CST

In this warm-up scene, Fritz and Corbo discuss whose cup is this, and whose it isn't.

Plus news for 07-07-2014


Direct download: ISTBonus_Nacho070714.mp3
Category:extras -- posted at: 8:11pm CST

Corbomite's beliefs and Crick's bee allergies are put to the test when the Sisyphus encounters a being from another dimension.


Improvised on Feb. 9th, 2014.

Direct download: IST_ep_89_At_What_Price_the_Costv2.mp3
Category:episode -- posted at: 11:41pm CST

The Captain talks to Hot Bones about her dangerous new hobby.

Plus news for 06-18-2014

Direct download: ISTBonus_QuantumRollerDerby.mp3
Category:extras -- posted at: 1:28pm CST

The crew let's it ride while visiting a space station of ill repute, but when the USS Sisyphus is lost in a game of chance, the only way to get it back is to put on a show!


Improvised March 23, 2014 from a suggestion by Chip Aucoin via Facebook.

With Special guests Sarah Shockey and Tim Dunn of The Shock T's.

Direct download: IST88_SpaceStationVegas.mp3
Category:episode -- posted at: 12:04pm CST

A special scene starring Matt Young and Jordan Klepper of The Daily Show!

Plus news for 06-01-2014.

Scene Part 1: 0:00

News: 2:45

Scene Part 2: 5:30

Big thanks to Jordan Klepper and Arnie Niekamp of the Premisey podcast for sharing this scene with us.


Julia Weiss is temporarily away from the show until August, as she went and got hired to work on a cruise ship for Second City.

Improvised Star Trek will have their next live show June 27th at iO Chicago, and will be the guests of Improvised Jane Austen( July 12.

And we'll be at the Official Chicago Star Trek Convention June 6-8! (

Direct download: ISTBonus_SpacePremise.mp3
Category:extras -- posted at: 10:11pm CST

Something doesn't smell right when the crew begins to lose their memories while on patrol near the Cardassian border.

Direct download: IST87_Hamnesia.mp3
Category:episode -- posted at: 6:01pm CST

News for the week: Our next live show is Friday the 23rd at iO theatre--come down and see what drink specials are on offer! 

We will also be at the Chicago Star Trek convention from June 6th through June 8th. Please stop by and see us if you're there!

Many thanks to Ryan Schile and Mark Soloff of the Our Fair City post-apocalypic sci-fi podcast, who were our guests during our recording session last week. This week's bonus features Mark, and the episode we recorded with Mark and Ryan will be available in the coming weeks!

Check out Our Fair City at and Mark's Blastropodcast at!

Direct download: IST_May_18th_bonus-Thithyphuth.mp3
Category:extras -- posted at: 12:25am CST

Parties abound as Commander Hayes and Holographic Abraham Lincoln struggle to reconcile their private lives with their professional and/or holographic lives.


Improvised on Feb. 23rd from a title suggested by Paul Nichols via Facebook.


With guest Mary Beth Smith of the Nerdologues and the MBSing podcast.

Direct download: IST_Ep_86_The_Eyes_of_March.mp3
Category:episode -- posted at: 9:35am CST

Something's afoot after a sinister intruder has invaded Corbomite's quarters. Can the crew get to the bottom of this darned mystery?

With special guest Bill Stern.

Improvised on February 9th, 2014, from a suggestion by Pedro Silhy via Facebook.

Direct download: IST_ep_85_The_Search_for_Sock-v2.mp3
Category:episode -- posted at: 5:49pm CST

News: This week's episode is running late but will be up soon. Also: we'd love to see you at our live show in Chicago on April 25th!



Direct download: IST_Bonus_Lost_and_Found.mp3
Category:extras -- posted at: 9:22pm CST

Captain Baxter and Commander Hayes have a very logical conversation, plus News for 2014-04-13.

Spock's Appendix was improvised as a warm-up scene on February 2, 2014 from a suggestion by Ryan Keller.

Direct download: ISTBonus_SpocksAppendix.mp3
Category:extras -- posted at: 7:24pm CST

The crew of the Sisyphus extend their shore leave on Amusement Park Planet when they have an opportunity to see the Zearth music zenzation Zaylor Zwift, a favorite of Dr. Zarlene Zonalzon's. Bzut when zings get zomzizazed. Ze zew zust zezzizz zzzezwzzzz znd zzzzzzzz.

Improvised December 1, 2013 from a suggestion by Derek Koshinski.

Edited by Roger Payton.


Direct download: IST84_WeAreNeverGettingBacktoOurSpaceship.mp3
Category:episode -- posted at: 1:03pm CST

Struggles over a vacant seat of power? Sex & Intrigue? Hundreds of tertiary characters? A weird pre-occupation with food?  That's right, it's Improvised Star Trek.

Improvised June 16, 2013 (after the season 3 finale) from a suggestion by David Kramlich via facebook.*

Hurdy-Gurdy GOT theme courtesy of youtuber Cherni Grissom.

Wedding band was portrayed by Cover Stories.
*Rita King & Captain Owl scene recorded 2014-03-13

Direct download: IST83_AGameofCaptainsChairs.mp3
Category:episode -- posted at: 1:02am CST

News for the week of March 16th!  To view the video bonus scene recorded by the ?Chicago Sun-Times, check out this link: The Chicago Sun-Times 

Direct download: ISTNews_20140316_Coffee.mp3
Category:extras -- posted at: 2:50pm CST

Lt. King and Ensign Lorem are in a real pickle, emotionally speaking.

Direct download: IST_Bonus_Trill_Pickles.mp3
Category:extras -- posted at: 10:31pm CST

The crew decides to deal with the g-g-g-ghosts on the so called "haunted deck" once and for all.

Direct download: IST82_ChiefSeanceOfficer.mp3
Category:episode -- posted at: 10:04am CST

Thanks to our recent iTunes reviews gregor's mentor and walbergr, as well as our sponsors John Godwin, John D'Angelo, and Katie Richeson. 


We have a Live Show: February 28 iO
Special Guest: Clayton Faits Creator/Writer/Actor Our Fair City
"a [scripted ]post-apocolyptic sci-fi epic" out of Chicago
We're attending Chi-Fi Con!
After rescheduling to 2015, Chi-Fi Con is having a one day event 
Saturday March 29, 2014.  $15 
save $5 if you enter " "improvstartrek" coupon code
We'll have a table there. Come by and meet us.
Poster Contest!!!
If you'd like to help out the show, you can send us poster designs to post around Chicago and online.  Any design that you think would help to promote the show is fair game! 8.5X11 - leave 2.5x4 area blank for date and ticket info. Due April 1 
email them to us: Winners will be announced on our website.
Direct download: IST_Bonus_Space_Plow.mp3
Category:extras -- posted at: 7:06pm CST

With Captain Baxter indulging in a Starfleet conference, the crew has to slim down with the help of a super-sized friend.

Direct download: Who_Watches_the_Weight_Watchers.mp3
Category:episode -- posted at: 10:55pm CST

While assisting a group of old-timey settlers, Captain Baxter and the rest of the pack--er... crew--follow the call of the wild.

Improvised on Oct. 20th, 2013. Title suggested by Roderick Millar via Facebook.

Direct download: IST80_The_Carrots_of_Possibility.mp3
Category:episode -- posted at: 11:00pm CST

News for the week: Mary Cait Walthall will be taking a temporary break from the show to study theater in London, so keep all your great Zarlene zuggestions in your pocket for a while! Julia Weiss and Griffen Eckstein joined the Trek About podcast, and Nick Wagner and Sean Kelley chatted with the OCDWeeb podcast.

In the bonus scene, Corbomite and Lt. King have "the talk" about where their away team is heading.

Direct download: ISTBonus_Milwaukee012714.mp3
Category:extras -- posted at: 10:02pm CST

The USS Ajax delivers Captain Baxter's fraternity buddies, and his efforts to please them alienate the rest of the crew.

Improvised May 12 from a suggestion by Darren Izzard via Facebook.

This one gets a bit gross.

Direct download: IST79_CaptainsPrivateClub.mp3
Category:episode -- posted at: 6:29pm CST

Captain Baxter consults Dr. Zonalzon about some aches and pains.

Improvised Septermber 22, 2013 from a suggestion by Ryan Kelly via Facebook.

There were some techincal difficulties with Dr. Zonalson's audio in the first 20 seconds, so for your information: She thinks Cpt. Baxter has early-onset athritis, and does not believe he's 29.

Speaking of technical difficulties, an earlier version of this file ran long.  Sorry! Blame the most recent Final Cut update, we're gonna.

Direct download: ISTMini_KneesoftheMany.mp3
Category:extras -- posted at: 10:42am CST