The following is a list of all the roles Johnny has played in television and movies. The links below will take you to the IMDB page for the movie or show.
Film
- Table for Three (2009) … Ted
- Hancock (2008) … Jeremy
- Who You Know (2007) … David
- Happy Endings (2005) (uncredited) … Miles
- White Like Me (2004) … Marcus
- Chrystal (2004) … Barry
- Bookies (2003) … Jude
- Vanilla Sky (2001) … Peter Brown
- Morgan’s Ferry (2001) … Darcy
- Bounce (2000) … Seth
- Playing Mona Lisa (2000) … Arthur
- The Opposite of Sex (1998) … Jason Bock
- I Know What You Did Last Summer (1997) … Max Neurick
- Suicide Kings (1997) … Ira Reder
- Bean (1997) … Stingo Wheelie
- Christmas Vacation (1989) …. Russell ‘Rusty’ Griswold
- Prancer (1989) … Billy Quinn
- A Night in the Life of Jimmy Reardon (1988) … Toby Reardon
Television
- The Big Bang Theory … Leonard Hofstadter (All episodes 2007-2010)
- “Family Guy” … Leonard Hofstadter
- Business Guy (2009)
- “My Boys” …. Trouty (3 episodes, 2006-2007)
- Ethics (2007)
- Take One for the Team (2006)
- Clubhouse Poison (2006)
- “American Dad!” …. Arnie (1 episode, 2006)
- “Hope & Faith” …. Jay (3 episodes, 2005-2006)
- Jay Date (2006)
- The Restaurant (2006)
- Blood Is Thicker Than Daughter (2005)
- “My Name Is Earl” …. Scott (1 episode, 2005)
- Peep Show (2005) … Mark
- “LAX” … Leland Pressman (1 episode, 2004)
- Becoming Glen (2002) … Glen
- Two Families (2002) … unknown
- Bagtime (2001) … unknown
- “The Norm Show” … Dale Stockhouse (2 episodes, 2000)
- “Batman Beyond” …. Knux (1 episode, 2000)
- “Roseanne” … David Healy (92 episodes, 1992-1997)
- Murder at My Door (1996) … Teddy McNair
- Without Consent (1994) … Marty
- A Family Torn Apart (1993) … Daniel Hannigan
- “Civil Wars” … Student accused of cheating (1 episode, 1993)
- “Billy” (1992) … David (unknown episodes)
- Backfield in Motion (1991) … Tim Seavers
- “American Dreamer” … Danny Nash
- Pilot (20 September 1990)
- Guys Just Wanna Have Fun (22 September 1990)
- Flight of the Dodo (29 September 1990)
- All God’s Children Go to Wisconsin (6 October 1990)
- Corvette Man (13 October 1990)
- Over the Hill? (20 October 1990)
- Mr. Wizard (27 October 1990)
- Divorce, American Dreamer Style (3 November 1990)
- In from the Cold: Part 1 (10 November 1990)
- In from the Cold: Part 2 (24 November 1990)
- The Fabulous Baker Girls (1 December 1990)
- A Face in the Cloud (8 December 1990)
- Don’t Drink the Water (25 May 1991)
- Mother Knows Best (1 June 1991)
- Papa Joe (8 June 1991)
- Heartbreak Diner (15 June 1991)
- They Shoot Ducks, Don’t They? (22 June 1991)
- “Blossom” … Jason (1 episode, 1991)
- In Defense of a Married Man (1990) … Eric
- “Hardball” (1 episode, 1990)
- Blind Faith (1990) … John Marshall
- Murder Ordained (1987) … Doug Rule
- Time Out for Dad (1987) … Matt Kowalski
















