
Acting
Robert Ellenstein was an American actor. The son of Meyer C. Ellenstein, a Newark dentist, Robert Ellenstein grew up to see his father become a two-term mayor from 1933 to 1941. He served in the United States Army Air Forces during World War II: earning a Purple Heart during his service.

Run Till You Fall
as Mr. Leopold

Star Trek IV: The Voyage Home
as Federation Council President

Brewster's Millions
as Mr. Carter

Love at First Bite
as VW Man

Breaking Up Is Hard to Do
as Van Alden
Telezonia
as Exclamation Point

The Legend of Lylah Clare
as Mike
To Die in Paris
as Dendier

A Bell for Adano
as Tomasino

Deathwatch
as Guard

ER
as Dr. Swanson · 1 ep.

Star Trek: The Next Generation
as Steven Miller · 1 ep.

Hooperman
as Judge Oliver Blaustein · 1 ep.

L.A. Law
as Dr. Peter Lacker (uncredited) · 1 ep.

Moonlighting
as Heinz · 1 ep.

Murder, She Wrote
as Mr. P · 1 ep.

V
as Gen. Maxwell Larson · 1 ep.

Magnum, P.I.
as Saul Greenberg · 1 ep.

Breaking Up Is Hard to Do
as Van Alden · 2 ep.

CHiPs
2 ep.
The Young Lions
1958