WK
Filmography
| 2020 | Unbelievable!!!!! · as Fireman Frank |
| 2018 | Diminuendo · as Milton Green |
| 2017 | Neil Stryker and the Tyrant of Time · as Ray Nabroski (future) |
| 2017 | Stretch Armstrong and the Flex Fighters (TV Series) · as Mr. Savic |
| 2013 | Blue Dream · as Lassie |
| 2009 | Scream of the Bikini · as actor |
| 2007 | InAlienable · as Dr. Shilling |
| 2007 | Bone Eater · as Coogan |
| 2006 | Mad Cowgirl · as Pastor Dylan |
| 2003 | Maximum Surge · as Drexel |
| 2000 | Son of the Beach (TV Series) · as Unknown |
| 1999 | Futurama (TV Series) · as Walter Koenig (voice) |
| 1997 | Viva Variety (TV Series) · as Guest |
| 1996 | Sworn to Justice · as Dr. Breitenheim |
| 1994 | Star Trek: Generations · as Pavel Chekov |
| 1993 | Babylon 5 (TV Series) · as Alfred Bester |
| 1993 | Diagnosis Murder (TV Series) · as Quinn Trask |
| 1991 | Star Trek VI: The Undiscovered Country · as 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 (TV Series) · as Vladimir Pavel Maximov |
| 1984 | Star Trek III: The Search for Spock · as Pavel Chekov |
| 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 | The Questor Tapes · as Administrative Assistant |
| 1974 | Nightmare Honeymoon · as Deputy Sheriff |
| 1973 | The Starlost (TV Series) · as Oro |
| 1971 | Columbo (TV Series) · as Sgt. Johnson |
| 1967 | Ironside (TV Series) · as Unknown |
| 1967 | Mannix (TV Series) · as Unknown |
| 1966 | Star Trek (TV Series) · as Pavel Chekov |
| 1965 | Gidget (TV Series) · as Unknown |
| 1965 | I Spy (TV Series) · as Bobby Seville |
| 1963 | The Lieutenant (TV Series) · as Unknown |
| 1963 | General Hospital (TV Series) · as Charlie Turner |
| 1962 | Combat! (TV Series) · as Sentry |
| 1962 | The Alfred Hitchcock Hour (TV Series) · as Tiger |
| 1962 | The Virginian (TV Series) · as Paul Erlich |
| 1959 | The Untouchables (TV Series) · as Student |