Katy Jack is a writer, comedian, and improviser. She's been improvising since 2003, and has been a part of DSI since 2004. She's studied under Ross White, Zach Ward, Porter Mason, and Corey Brown. The greatest three hours of her life were spent learning about improvising, listening and patience with TJ Jagodowski and Dave Pasquesi ("trust us, this is all made up").

As a performer, she's worked with DSI Harold teams KEVLAR and Room 158. She's currently rehearsing with Double D20s, an all-female geekfest. She's also been seen in Cagematch with Bonus Room, The Darkness, and Ancient Artifact. Of five Cagematch performances, she's only won twice.

Outside of comedy, Katy works at the mall. She loves her time off and spends it with family, friends, and her adorable kitty cat, Sparky. Her nephew is her biggest fan, and attributes his sense of humor to his Auntie Katy.

Katy can be seen regularly winning street cred with Improv Slam