Known For
Filmografia
| 2025 | Raging Midlife · as Otis |
| 2022 | Butterfly in the Sky · as Chekov |
| 2020 | Unbelievable!!!!! · as Fireman Frank |
| 2020 | Star Trek: Picard · as President Anton Chekov (voice) |
| 2018 | Diminuendo · as Milton Green |
| 2018 | Who Is Martin Danzig? · as Martin Danzig |
| 2017 | Stretch Armstrong and the Flex Fighters · as Mr. Savic |
| 2017 | Nobility · as Frank Mooney |
| 2017 | Neil Stryker and the Tyrant of Time · as Ray Nabroski (future) |
| 2017 | Renegades · as The Admiral |
| 2017 | Nobility · as Frank Mooney |
| 2016 | Star Trek: Captain Pike · as Admiral Harlan Sobol |
| 2015 | Star Trek: Renegades · as Admiral Chekov |
| 2013 | Blue Dream · as LassieNa Plex |
| 2009 | Scream of the Bikini · as Cast |
| 2007 | Star Trek: Of Gods and Men · as Captain Pavel Chekov |
| 2007 | InAlienable · as Dr. ShillingNa Plex |
| 2007 | Bone Eater · as CooganNa Plex |
| 2006 | Mad Cowgirl · as Pastor Dylan |
| 2004 | Star Trek New Voyages: Phase II · as Lt. Pavel Chekov |
| 2003 | Maximum Surge · as Drexel |
| 2000 | |
| 2000 | The Privateers · as Adm. Roka |
| 1999 | Ultimate Trek: Star Trek's Greatest Moments · as Ensign Pavel Chekov |
| 1999 | Futurama · as Walter Koenig (voice) |
| 1997 | Drawing Down the Moon · as Joe Merchant |
| 1997 | Viva Variety · as Guest |
| 1996 | Sworn to Justice · as Dr. BreitenheimNa Plex |
| 1995 | |
| 1994 | Star Trek: Generations · as Commander Pavel Chekov |
| 1993 | Diagnosis Murder · as Quinn Trask |
| 1993 | Babylon 5 · as Alfred Bester |
| 1993 | Star Trek: Deep Space Nine · as Ensign Pavel Chekov |
| 1991 | Star Trek VI: The Undiscovered Country · as Cmdr. Pavel Chekov |
| 1989 | Star Trek V: The Final Frontier · as Cmdr. Pavel Chekov |
| 1988 | Moontrap · as Col. Jason Grant |
| 1986 | Star Trek IV: The Voyage Home · as Cmdr. Pavel Chekov |
| 1986 | The Real Ghostbusters · as Followers |
| 1984 | Antony and Cleopatra · as Pompey |
| 1984 | Star Trek III: The Search for Spock · as Cmdr. Pavel Chekov |
| 1984 | Leonard Nimoy: Star Trek Memories · as Ensign Pavel Chekov |
| 1982 | Bring 'Em Back Alive · as Toder |
| 1982 | Star Trek II: The Wrath of Khan · as Cmdr. Pavel Chekov |
| 1980 | The Starlost: The Alien Oro · as Oro |
| 1979 | Star Trek: The Motion Picture · as Lt. Pavel Chekov |
| 1974 | Nightmare Honeymoon · as Deputy Sheriff |
| 1974 | The Questor Tapes · as Administrative Assistant |
| 1973 | The Starlost · as Oro |
| 1971 | Goodbye, Raggedy Ann · as Jerry |
| 1971 | Columbo · as Sergeant Johnson |
| 1969 | Medical Center · as Harry Seller |
| 1967 | |
| 1967 | |
| 1966 | |
| 1966 | Star Trek · as Pavel Chekov |
| 1965 | |
| 1965 | I Spy · as Bobby Seville |
| 1963 | The Great Adventure · as Cy Bedrozian |
| 1963 | Mr. Novak · as Alexsei Dubov |
| 1963 | The Lieutenant · as Sgt. John Delwyn |
| 1963 | General Hospital · as Charlie Turner |
| 1962 | Combat! · as Sentry |
| 1962 | The Alfred Hitchcock Hour · as Tiger |
| 1962 | The Virginian · as Paul Erlich |
| 1961 | |
| 1959 | The Untouchables · as Student (uncredited) |
| 2016 | Star Trek: Captain Pike · as Co-Producer |
| 2015 | Star Trek: Renegades · as Consulting Producer |
| 2007 | InAlienable · as Executive ProducerNa Plex |