Kevin Sussman

Kevin L. Sussman (born December 4, 1970) is an American actor and comedian. He played Walter on the ABC comedy-drama Ugly Betty and Stuart Bloom on the CBS sitcom The Big Bang Theory. Starting with the sixth season of The Big Bang Theory, he was promoted to a series regular. Sussman stars in the series Stuart Fails to Save the Universe, which debuted in July 2026.

Early life, family and education Sussman is the youngest of four brothers born to Jewish parents Michael and Barbara Sussman. He grew up in Staten Island, New York City, New York where he attended Staten Island Technical High School and graduated from New Dorp High School.

He attended the College of Staten Island for a year

Career Sussman's professional acting began in commercials, playing geeks or nerds. At the time, he worked as a computer consultant.

On July 9, 2025, it was announced that Sussman would star in a spin-off series Stuart Fails to Save the Universe to be streamed on HBO Max. The show also stars Lauren Lapkus and Brian Posehn.

Personal life Sussman was married to Alessandra Young from 2006 until 2017.

Sussman married Addie Hall in April 2023.

Filmography

Film Year Title Role Notes 1999 Liberty Heights Alan Joseph Zuckerman 2000 Almost Famous Lenny 2001 Wet Hot American Summer Steve Kissing Jessica Stein Calculator Guy A.I. Artificial Intelligence Supernerd 2002 Pipe Dream James Threads Caesar Changing Lanes Tyler Cohen Sweet Home Alabama Barry Lowenstein 2004 Little Black Book Ira 2005 Hitch Neil 2006 The Wedding Album Oswald Funny Money Denis Slater Ira & Abby Lenny For Your Consideration Commercial Director 2007 Heavy Petting Ras 2008 Sincerely, Ted L. Nancy Ted Made of Honor Tiny Shorts Guy Insanitarium Dave Burn After Reading Tuchman Marsh Man 2009 Taking Woodstock Stan 2010 Killers Mac Bailey Alpha and Omega Shakey (voice) 2011 Freeloaders Benedict 'Benny' Vicvikis 2012 2nd Serve Scott Belcher/O.C.D. 2025 Hurricanna Bipolar Man

Television