Walter Marvin Koenig is an American actor, writer, teacher and director, known for his roles as Pavel Chekov in Star Trek and Alfred Bester in Babylon 5. He wrote the script for the 2008 science fiction legal thriller InAlienable.

Filmography

• 2025Raging Midlife — Otis
• 2023Star Trek: Picard - The IMAX Live Series Finale Event — Anton Chekov (voice)
• Star Trek: Picard — President Anton Chekov (voice)
• 2020Unbelievable!!!!! — Fireman Frank
• 2018Diminuendo — Milton Green
• 2017Neil Stryker and The Tyrant of Time — Ray Nabroski (future)
• Star Trek: The Original Series – The Roddenberry Vault
• 2015Cowboys & Engines — Professor Timéon
• Star Trek: Renegades — Admiral Chekov
• 2013Blue Dream — Lassie
• 2012Handball — Captain, Producer
• 2008Bone Eater — Coogan
• 2008InAlienable — Dr. Shilling, Writer, Executive Producer
• 2006Mad Cowgirl — Pastor Dylan
• 2004Kiss 'N' Tell: Romance in the 23rd Century
• 2003Maximum Surge — Drexel
• 2000Drawing Down the Moon — Joe Merchant
• Son of the Beach
• Futurama — Walter Koenig (voice)
• 1996Sworn to Justice — Dr. Breitenheim
• Almost Perfect
• Babylon 5 — Alfred Bester
• 1994Star Trek: Generations — Commander Pavel Chekov
• Diagnosis: Murder — Quinn Trask
• Star Trek: Deep Space Nine — Ensign Pavel Chekov
• 1991Star Trek VI: The Undiscovered Country — Cmdr. Pavel Chekov
• 1989Moontrap — Col. Jason Grant
• 1989Star Trek V: The Final Frontier — Cmdr. Pavel Chekov
• 1986Star Trek IV: The Voyage Home — Cmdr. Pavel Chekov
• The Real Ghostbusters — Vladimir Maximov / Followers (voice)
• 1984Star Trek III: The Search for Spock — Cmdr. Pavel Chekov
• 1983Antony and Cleopatra — Pompey
• 1982Star Trek II: The Wrath of Khan — Cmdr. Pavel Chekov
• The Powers of Matthew Star — Writer
• 1980The Starlost: The Alien Oro — Oro
• 1979Star Trek: The Motion Picture — Lt. Pavel Chekov
• Family — Writer
• Land of the Lost — Writer
• 1974Nightmare Honeymoon — Deputy Sheriff
• 1974The Questor Tapes — Administrative Assistant
• Star Trek — Writer
• The Starlost — Oro
• Columbo — Sergeant Johnson
• 1971Goodbye, Raggedy Ann — Jerry
• Ironside
• Mannix
• Jericho
• Star Trek — Pavel Chekov
• Gidget
• Mr. Novak — Alexsei Dubov, Jim Carsey, Paul Ryder
• The Lieutenant — Sgt. John Delwyn
• The Alfred Hitchcock Hour — Tiger
• Ben Casey
• The Untouchables — Student (uncredited)

Appearances as themselves (35)

• 2026For the Love of Star Trek — Self
• Star Trek: Legenden — Self - Pavel Chekov
• 2026The Sixty Year Mission: How Star Trek Changed Television and the World — Self
• 2025Lost Voyages: Phase II and the Rebirth of Star Trek — Self
• The D-Con Chamber — Self
• 2022In Search of Tomorrow — Self - Interviewee
• The Shuttlepod Show — Self
• 2022Way of Tomorrow: The Evolution of Science Fiction Movies — Self - (archive footage)
• The Center Seat: 55 Years of Star Trek — Self
• 2021Woman in Motion — Self
• 201650 Years of Star Trek — Self
• 2016For the Love of Spock — Self
• 2016Star Trek: Inside the Roddenberry Vault — Self
• 2014To Be Takei — Self
• The Captains Close Up — Self
• 2012Backyard Blockbusters — Self
• 2011The Captains — Self
• 2009Bring Back... Star Trek — Self
• Shatner's Raw Nerve — Self
• 200640 Years of Star Trek — Self
• Bring Back... — Self
• 2005How William Shatner Changed the World — Self (archive footage)
• 2004Collectormania 6 — Self
• After They Were Famous — Self
• Space Cadets — Self
• 1997Trekkies — Self
• 1996Star Trek: 30 Years and Beyond — Self
• 1996William Shatner's Star Trek Memories — Self
• 1994Star Trek: A Captain's Log — Self
• 1994William Shatner: Captain's Log — Self
• 1991Star Trek: 25th Anniversary Special — Self
• Prisoners of Gravity — Self
• 1988The Star Trek Saga: From One Generation to the Next — Self
• 1986Fangoria's Weekend of Horrors — Self
• Surprise, Surprise — Self