Filmography
| Year | Work | Role | Notes |
|---|---|---|---|
| 1977 | Kojak | Thomas Rindone | Television |
| 1981 | The Howling | Eddie Quist | |
| 1981 | Alice | Officer Maxwell | Television |
| 1983 | Get Crazy | Connell O'Connell | |
| 1985 | Legend | Meg Mucklebones | |
| 1985 | Explorers | Starkiller / Wak / Wak and Neek's Father | Voice and Actor |
| 1987 | Amazon Women on the Moon | Rick Raddnitz | |
| 1987 | Innerspace | The Cowboy | |
| 1988 | The Wonder Years | Coach Cutlip | 15 episodes, 1988-1991 |
| 1988 | China Beach | Dr. Dick Richard | 61 episodes, 1988-1991 |
| 1988 | 976-EVIL | Mark Dark | |
| 1988 | Dead Heat | Lieutenant Herzog | |
| 1988 | Jack's Back | Dr. Carlos Battera | |
| 1989 | Loverboy | Reed Palmer | |
| 1989 | The 'Burbs | Joe | |
| 1990 | Gremlins 2: The New Batch | Forster | |
| 1990 | Total Recall | Johnnycab | Voice and image |
| 1991 | Motorama | Jerry The Policeman | |
| 1993 | Home Improvement | Joe "The Meat Man" Morton | |
| 1993 | The Adventures of Brisco County, Jr. | Puel | |
| 1994 | Wagons East | Ben Wheeler | |
| 1994 | Revenge of the Nerds IV | Chad Penrod | |
| 1994 | VR.5 | VR Engineer | |
| 1995 | Star Trek: Voyager | The Doctor | 170 episodes, 1995-2001 |
| 1996 | Star Trek: First Contact | Emergency Medical Hologram | |
| 1997 | Star Trek: Deep Space Nine | Dr. Lewis Zimmerman | "Doctor Bashir, I Presume?" |
| 1998 | Small Soldiers | Ralph | |
| 2001 | 7 Days | Major Michael McGrath | Television |
| 2001 | Frasier | Mr. Kechner | 1 episode Season 9 episode 11 "Bully for Martin" |
| 2002 | Justice League | Amazo | 6 episodes, 2002-2004 |
| 2003 | The Lyon's Den | Detective Nick Traub | 7 episodes, 2003–2004 |
| 2004 | Stargate SG-1 | Richard Woolsey | 7 episodes, 2004-2007 |
| 2004 | The West Wing | E. Bradford Shelton | 1 episode, "The Supremes" |
| 2005 | E-Ring | Larry Kincaid | 4 episodes, 2005-2006 |
| 2005 | The 4400 | Trent Appelbaum | Television |
| 2006 | Stargate Atlantis | Richard Woolsey | 20 episodes, 2006-2009 |
| 2007 | Pirates of the Caribbean: At World's End | Singapore Townsfolk | Video game, Voice |
| 2007 | The Closer | Mr. Sheffield | Television |
| 2007 | Ben 10: Race Against Time | Principal White | TV movie |
| 2007 | CSI: NY | Sheriff Benson | Television |
| 2008 | Smallville | Edward Teague | 2 episodes |
| 2009 | Castle | Dr. Clark Murray | 2 episodes, 2009-2010 |
| 2010 | Justified | Karl Hanselman | Television |
| 2010 | Supernatural | Wayne Whittaker/Leprachaun | Television |
| 2010 | Monsterwolf | Stark | TV movie |
| 2010 | Mega Shark Versus Crocosaurus | Admiral Calvin | |
| 2010 | Call of Duty: Black Ops | Robert McNamara (voice) | Video game |
| 2011 | Stargate Universe | Richard Woolsey | Television |
| 2011 | No Ordinary Family | vice-principal Nance | Television |
| 2011 | The Captains | Himself | |
| 2011 | United States of Tara | Dr. Smolow | 1 episode, season 3, episode 9 "Bryce Will Play" |
| 2012 | Body of Proof | Henry | 1 episode, 2012 |
| 2012 | The Mentalist | Jason Cooper | Episode: "His Thoughts Were Red Thoughts", 2012 |
| 2012 | Austin and Ally | Dr. Grant | Episode: "Successes & Setbacks", 2012 |
| 2012 | Call of Duty: Black Ops II | Erik Breighner | Video game, voice |
Read more about this topic: Robert Picardo