
Acting
David Lawrence Groh (May 21, 1939 - February 12, 2008) was an American actor best known for his portrayal of Joe Gerard in the 1970s television series Rhoda, opposite Valerie Harper.
Description above from the Wikipedia article David Groh, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Jelly
as Robert Gills

Evilution
as Dr. Tyler

Crash and Burn
as Petek Hellman

Expecting Love
as Used Car Dealer

Jane Doe: The Harder They Fall
as Melville Horning

Crazylove
as Mr. Santalucci

The Confidence Man
as The Lieutenant

Blowback
as Capt. Barnett

Take My Advice: The Ann and Abby Story
as Abe

Spoiler
as Uncle Hutchy

Black Scorpion
as Lt. Stan Walker · 21 ep.

Girlfriends
as Michael Goldberg · 2 ep.

The Huntress
1 ep.

V.I.P.
as Mr. Franco · 1 ep.

Mike Hammer, Private Eye
1 ep.

JAG
as Dad Harridan · 1 ep.

The X-Files
as Jacob Weiss · 1 ep.

Walker, Texas Ranger
as Vince Termin · 1 ep.

Melrose Place
as Vince Parezi · 4 ep.

Law & Order
as Judge Joel Thayer · 1 ep.