
Acting
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.

Raging Midlife
as Otis

Lost Voyages: Phase II and the Rebirth of Star Trek
as Self

Star Trek: Picard - The IMAX Live Series Finale Event
as Anton Chekov (voice)

In Search of Tomorrow
as Self - Interviewee

Way of Tomorrow: The Evolution of Science Fiction Movies
as Self - (archive footage)

Woman in Motion
as Self

Unbelievable!!!!!
as Fireman Frank

Diminuendo
as Milton Green

Renegades: The Requiem: Part 1
as The Admiral

Neil Stryker and The Tyrant of Time
as Ray Nabroski (future)

The D-Con Chamber
as Self · 1 ep.

The Shuttlepod Show
as Self · 1 ep.

The Center Seat: 55 Years of Star Trek
as Self · 3 ep.

Star Trek: Picard
as President Anton Chekov (voice) · 1 ep.

Star Trek: The Original Series – The Roddenberry Vault
6 ep.

The Captains Close Up
as Self · 1 ep.

Shatner's Raw Nerve
as Self · 1 ep.

Bring Back...
as Self · 1 ep.

After They Were Famous
as Self · 1 ep.

Son of the Beach
1 ep.
Star Trek VI: The Undiscovered Country
1991