
Biography
Dov Yosef Tiefenbach (born December 8, 1981, in Toronto, Ontario, Canada) is a Jewish Canadian actor and musician, 5′ 5″ (165 cm) tall, who began his acting career at age twelve in commercials before landing his first on-screen role as Josh Avery in the television series RoboCop (1994). He made his first starring role as Murray Murray in the short film Love Child (1995) alongside Neve Campbell, and went on to star as Nick Burns in the 1996 Broadway production of A Thousand Clowns opposite Judd Hirsch. He won the Leo Award for Best Supporting Male Performance for Flower & Garnet (2002), and as a musician he fronted the Toronto indie pop bands Theresa Sound-World (named after a Sonic Youth song) and Trucks Leaving. He currently resides in Los Angeles. His most notable film credits include Azrael in Jason X (2001), Bradley Thomas in Harold & Kumar Go to White Castle (2004), a role in Tommy Boy (1995), It Takes Two (1995), The Mighty (1998), Knockaround Guys (2001), Adrian in The Dark Hours (2005), Billy in Parasomnia (2008), Hershey in You Might as Well Live (2009), Moises in Polish Bar (2010), Oogie in Sympathy for Delicious (2010), Logan in Asthma (2015), Samson Griggs in Poor Boy (2016), Will Sacco in We Forgot to Break Up (2017), a Club Customer in Molly's Game (2017), Jason in All My Puny Sorrows (2021), and Larry in It Feeds (2025). On television he is best known as Keechie in The Umbrella Academy (2020, 6 episodes), Gizmo in Titans (2021), Percy Campbell in Transplant (2023, 3 episodes), Steve in The Boys (2024, 2 episodes), Fitz in Law & Order: Special Victims Unit (2018–2019, 5 episodes), with additional credits in Goosebumps (1996, 1998), Little Men (1998), Witchblade (2002), CSI: Crime Scene Investigation (2006), The Strain (2014), Homeland (2017), Pretty Hard Cases (2021), and Murdoch Mysteries.
Acted in 68
2020s
- 2025
- 2022
- 2021
- 2020
About a Teacher
Mr. Harchol
2010s
- 2019
- 2018
Landing Up
James
- 2017
We Forgot to Break Up
Will Sacco
Save Me
Photographer · 1 episode
- 2015
Asthma
Logan Backer
- 2014
Hunter&Game
Aaron
- 2013
- 2012
The Napkin
Robin
- 2011
A Holiday Heist
Bert
Boy Toy
Ronnie
The FP
Triple Decka 1K
- 2010
2000s
- 2009
You Might As Well Live
Hershey Hershenfield
- 2008
- 2007
The Day The Dead Weren't Dead
Stewart "The Sauce" Jackson
- 2006
This Space for Rent
Lucky Carroway · 3 episodes
- 2005
Tilt
Crackle · 6 episodes
- 2004
- 2003
The Delicate Art of Parking
Lonny Goosen
Public Domain
Tommy
- 2002
Between Strangers
Matt
Flower & Garnet
Ronnie
- 2001
Gahan Wilson's The Kid
Mask
On the Line
High School Kid
One of Them
Reggie
- 2000
1990s
- 1999
Dear America
Yitzy · 1 episode
- 1998
Goosebumps: The Ghost Next Door
Fred
Animorphs
Erek · 2 episodes
Eerie, Indiana: The Other Dimension
TV
- 1996
Goosebumps: Bad Hare Day
Tim Swanson
Radiant City
Joel
- 1995
- 1994