David Ellenstein is an actor, best known for See Arnold Run, Star Trek IV: The Voyage Home, and The Van. Other film credits include One Thousand Senses, Battle Athletes, and Tokyo: The Last Megalopolis.

Television credits include ABC's The Practice, USA's Renegade, and ABC's Eight is Enough. David also appeared in the Madhouse miniseries Doomed Megalopolis.

Theater credits include Einstein in Picasso at the Lapin Agile (Laguna Playhouse); Calisto in The Illusion and Harker in Dracula (Arizona Theatre); Tevye in Fiddler on the Roof (Moonlight Amphitheatre); and Jonathan in Sight Unseen, Dr. Harry Hyman in Broken Glass, Matt Friedman in Talley's Folly, and the Man in My Name is Asher, for which David won the Craig Noel Awards for Excellence in Theatre, Outstanding Featured Performance in a Play (North Coast Repertory).