Began doing stand-up comedy when he was 23
First met Roseanne Barr
Made TV debut in the HBO special "The Roseanne Barr Show"
Won the first place in the Minneapolis Comedy Competition
Moved to Los Angeles to pursue a standup comedy career
Hired as a writer for Barr's sitcom "Roseanne" (ABC)
Appeared occasionally on "Roseanne" (ABC) as the character 'Arnie Thomas'
Debuted as a producer for the show "Roseanne" (ABC)
Co-founded Wapello County Productions with Roseanne
Executive produced the Saturday morning animated TV series "Little Rosey" (ABC)
TV-movie acting debut, "Backfield in Motion"
Made feature film debut in a cameo (with Roseanne) in "Freddy's Dead: The Final Nightmare"
First HBO special, "Tom Arnold: The Naked Truth"
Made TV movie acting debut in "Backfield in Motion" (ABC)
First substantial feature acting credit, "Hero"
Created, executive produced and starred in the series "The Jackie Thomas Show" (ABC)
Signed a long-term TV production deal with Warner Bros., with projects to be produced under the Wappello County Productions banner
Created and produced the short-lived CBS sitcom "Tom"; also wrote the pilot episode
Appeared as the sidekick to Arnold Schwarzenegger¿s character in the James Cameron feature film "True Lies"
Formed the production company Clean Break Productions
Played a supporting role in the comedy "Nine Months"
Co-starred with Rick Moranis in "Big Bully"
Returned to series TV as star of The WB sitcom "The Tom Show"
Co-hosted the Fox Sports program "Best Damn Sports Show Period"
Landed first romantic leading man role in "Happy Endings"
Wrote and starred in the comedy "The Kid and I"
Cast opposite Terrence Howard in the inner-city sports drama "Pride"
Landed recurring guest role on "Sons of Anarchy" (FX)
Appeared in the comedy "Tyler Perry's Madea's Witness Protection"
Appeared opposite Kristen Bell and Bradley Cooper in action comedy "Hit and Run"