Improvised Star Trek
Improvised Star Trek explores 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. To learn more about the show check out our website, facebook page, or twitter!
Improvised Star Trek is fan production. Star Trek is property of CBS/Paramount.

The crew led by Cdr. Hayes encounter a unique life form, which may have hostile intentions. A courtship ritual takes center stage.

This episode was improvised on July 31, 2016. Title suggested by Tyson Thorp via Facebook.

Edited by Eric Scull


Griffen Eckstein as Squircle, Lt. Cdr. Fritz Fassbender, Lt. Leopold Lackey, Lt. Son
Sean Kelley as Lt. Cdr. Crick Watson
Eli Mandell as Acting Rip Stipley, Rhombus
Chris Rathjen as Cdr. Corbomite Hayes, Trhombus
Mary Cait Walthall as Dr. Zarlene Zonalzon, En. Operator, Triangle

This episode is sponsored by Cards Against Humanity, a member of the Chicago Podcast Co-Op.

Check out Talking Games.

Direct download: Ep_145_Squircle_Part_Square_Part_Circle.mp3
Category:episode -- posted at: 12:16am CDT

This week's news: 

Many thanks to the Chicago Nerd Comedy festival and all of the folks who came to see our show there this year!


We are now a finalist in the Parsec Awards!


Check out Eric Scull talking about one of his favorite movies, Frequency, on the Cinescope podcast.


Join us at NerdCon Stories in Minneapolis this October, where we'll be doing a show, panels, a workshop, and more!


Direct download: ISTBonus_AlienVPredatorEsq.mp3
Category:extras -- posted at: 10:06am CDT

The crew can't keep a lid on it when a special ops officer arrives for a secret mission. 

Improvised on May 29th 2016. Title suggested by Mackenzie Alexander Boyle via Facebook.

Edited by Nick Wagner 



Matt Young as Cpt. Julius Valentine Baxter, Squagular

Christopher Rathjen as Corbomite Hayes, Voletrawn

Nick Wagner as Lt. Ch'arles Lorem

Katie Schutte as Ensign Manger, Quabar

Sean Kelly as Crick Watson, Admiral 

Eli Mandel as Rip Stipley, Kreamer


This episode is brought to you by Inventables. Learn more about Carvey, their new 3D carving machine, at



Direct download: IST144_CodeNameEnsignDanger.mp3
Category:episode -- posted at: 4:21pm CDT

So, no one told you space was going to be this way. Your ships a joke, you're broke, your love-lifes holographic. Seems like you're always stuck at impulse speed, when it hasn't been your stardate, your starweek, your starmonth, or even your staryear.

Improvised April 10, 2016 from a suggestion by Doug Frye via Facebook

Edited by Chris Rathjen

With musical contributions by Eric Garneau & Dan Granata


Griffen Eckstein as Fritz Fassbinder, Gunther
Sean Kelly as Crick Watson
Eli Mandel as Rip Stipley, Lt. Jeremy Swanson, Cpt. Morgan Bateson
Christopher Rathjen as Corbomite Hayes
Nick Wagner as Lt. Ch'arles Lorem
Mary Cait Walthall as Dr. Zarlene Zonalzon, Janet, En. Operator
Julia Weiss as Ensign Spot, Lt. Rita King
Matt Young as Cpt. Julius Valentine Baxter, Lt. Geller

Direct download: IST143_TheOneWhereRossGetsAMonkey.mp3
Category:episode -- posted at: 9:22pm CDT


Improvised Star Trek will be performing at the Chicago Nerd Comedy fest in August:


We will also be performing and presenting panel discussions at NerdCon Stories from October 14th-15th:


Sean Kelley was featured on a recent episode of the Nerd Lunch podcast:


And many thanks for the many lovely recent iTunes reviews!

Direct download: ISTBonus-ZippityZoppityZoo.mp3
Category:general -- posted at: 6:46pm CDT

The crew goes on a first contact with a new species... or race? Insecurities run high and Lorem gets shaved in this thinly veiled, pretty spot on remake of the Voyager pilot.


Improvised on January 24th 2016. Title suggestion by @spywrite via Twitter.


Edited by Hannah Parsons



Chris Rathjen as Commander Corbomite Hayes

Nick Wagner as Lt. Ch'arles Lorem

Mary Cait Walthall as Dr. Zarlene Zonalzon

Griffen Eckstein as Lt. Cdr. Fritz Fassbender and Ensign Lacky


Special Guest/Editor Hannah Parsons as Two-Vicks, Nice Southern sounding lady and Ensign Adora



This episode is sponsored by Iventables

Check out: Hello from the Magic Tavern


Direct download: ISTEp142TheHairtaker.mp3
Category:episode -- posted at: 12:23pm CDT

Inappropriate appropriation abounds, appropos of nothing. Will Rip Stipley accept himself for who he is, or will he finally take things too pon farr?

Improvised on March 20th, 2016. Title suggested by Ron Harvey Jr. via Facebook

Edited by Roger Payton


Eli Mandel as Acting Bajoran Rip Stipley

Julia Weiss as Lt. Rita King

Chris Rathjen as Commander Corbomite Hayes

Nick Wagner as Lt. Ch'arles Lorem

Matt Young as Captain Julius Valentine Baxter

Mary Cait Walthall as Dr. Zarlene Zonalzon

Eleanor Hollingsworth as Counsellor Rayvek

Direct download: IST141-CantBeatEmBajoranEm.mp3
Category:episode -- posted at: 9:07am CDT

Lieutenant Lorem seeks counsel from Counselor Rayvek. Crick repays a debt. Rip Stipley gets in over his head.

This episode was improvised on April 3rd, 2016 from a suggestion by @overhaze via Twitter.

Edited by Eric Scull


Eleanor Hollingsworth as Counselor Rayvek
Sean Kelley as Lt. Cmdr. Crick Watson, G.F.O.
Eli Mandel as Rip Stipley, En. Lindberger
Nick Wagner as Lieutenant Lorem
Matt Young as Cpt. Julius V. Baxter, Lt. Greg, B.F.O.

This episode is sponsored by Iron Galaxy

Check out Making New Friends

Direct download: EP_140__A_Mind_Forever_Chained.mp3
Category:episode -- posted at: 3:02am CDT

The delicate balance of the Sisyphus is upset when Ensign Operator leaves and an inssssssssssidious ssssscientist arrives. 

Improvised on March 27, 2016

Edited by Nick Wagner 


Featuring (in order of appearance)

Chris Rathjen as Dr. F'Geaux, Cmdr. Corbomite Hayes, Dr. Lasereyes

Sean Kelley as Cmdr. Crick Watson

Matt Young as Dr. Slither, Lt. Greg. Captain Julius V. Baxter

Nick Wagner as Lt. Ch'arles Lorem, Dr. Krux 

Mary Cait Walthall as Ensign Operator, Dr. Konkrete

Eleanor Hollingsworth as Dr. Jane Badsome, Lt. Rayvek, Dr. Blunderschmidt


Direct download: IST139_MinistryOfUngentlemanlyScience.mp3
Category:episode -- posted at: 5:21pm CDT

  An unlikely duo discuss breakfast foods while performing maintenance on the upper nacelles.  
  Improvised January 10, 2016 from a title by Paul Nichols via Facebook  
  Edited by Eric Scull  
  Christopher Rathjen as Cdr. Corbomite Hayes, Bronson  
  Matt Young as Pancakes Johnson  
  Sean Kelley's character, Jack Vorpal (Foon's Greatest Swordsman) has returned to "Hello from the Magic Tavern." Check out Episode 63 of their podcast.  
  Game of Thrones fans: check out IST editor Eric Scull's "Game of Owns" podcast's interview with Hodor actor Kristian Nairn.  
  IST's Julia Weiss helped contribute to Cards Against Humanity's "Donald Trump Bug Out Bag." Read about it from Time Magazine.  
  Congratulations to our friends, Our Fair City, for the successful launch of the seventh season of their podcast!  
  IST's Griffen Eckstein will be performing live at iO Theater, Tuesday nights in June. Event details are at this link. The Improvised Star Trek cast will be joining him... keep an eye on our social media for more details.  
Direct download: ISTBonusPancakeBreakfast.mp3
Category:general -- posted at: 5:57pm CDT