Robert Klein

Law & Order: Special Victims Unit

as Dwight Stannich

1999

Law & Order

as Rick Mason

1990

Frasier

as Gary (voice)

1993

The Good Wife

as Lyle, as Lyle Pollard

2009

Murder, She Wrote

as Barney Drake

1984

The King of Queens

as Bruce Degner

1998

Madam Secretary

as Lester Clark

2014

Mad About You

as Stan Freitus

1992

Heartland

as Dwayne Trent

2007

Family Ties

as Roger "Eggy" Erdman

1982

Oz

as Self (uncredited)

1997

The Twilight Zone

as (segment "Wordplay")

1985

Duckman

as Uncle Mo Dorkin (voice)

1994

Will & Grace

as Martin Adler

2017

Dr. Katz, Professional Therapist

as Robert (voice)

1995

Yes, Dear

as Robert Klein

2000

The Mysteries of Laura

as Leo Diamond

2014

Life on Mars

as Elliott Casso

2008