
Acting
Mark Roberts (June 9, 1921 - January 5, 2006) was an American stage, film and television support actor who appeared in over 100 films between 1938 and 1994, according to the Internet Movie Database. Sometimes he was credited as Bob Scott, Robert E. Scott, or Robert Scott. He is survived by his three children.
Description above from the Wikipedia article Mark Roberts, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Spontaneous Combustion
1990

Spontaneous Combustion
as Dr. Simpson

Meet the Munceys
as Charles Vanderplas

Return to Earth

Posse
as Mr. Cooper

Once Is Not Enough
as Rheingold

The F.B.I. Story: The FBI Versus Alvin Karpis, Public Enemy Number One
as Aide #2

The Affair
as Howard

Welcome Home, Johnny Bristol
as Mr. Bristol

The Brotherhood of the Bell
as DA Avery Hazelton (uncredited)

The Money Jungle
as Joe Diguseppe

L.A. Law
as Martin Haley · 1 ep.

Murder, She Wrote
as Russell Yorke · 1 ep.

Highway to Heaven
1 ep.

The Rockford Files
as Hillman Stewart · 1 ep.

Cannon
2 ep.
The Partners
1 ep.
My Friend Tony
1 ep.

Ironside
1 ep.

The Invaders
as Dr. Sam Larousse · 1 ep.

That Girl
1 ep.