Mark Lonow

Columbo

1971 · ★ 8.1 · Ted Malloy

Chicago Hope

1994 · ★ 7.2 · Porsche Driver

Beverly Hills, 90210

1990 · ★ 7.3 · Chick Schneider

Quantum Leap

1989 · ★ 8.0 · Lou Collins

Sabrina, the Teenage Witch

1996 · ★ 7.8 · Dr. Braverman

Falcon Crest

1981 · ★ 5.6 · Music Producer

The Rockford Files

1974 · ★ 7.6 · Coco

Murphy Brown

1988 · ★ 6.5 · Jerry Weiss

Moonlighting

1985 · ★ 7.5 · Ronald "Ron" Sawyer

All in the Family

1971 · ★ 7.8 · Pete Gavaris

Madame's Place

1982 · Walter Malice

Rude Awakening

1998 · Max Frank

National Security

2003 · ★ 6.0 · Detective at Interrogation

Good Advice

1993 · Sutherland

DAG

2000 · Dr. Robert Pastore

Conrad Bloom

1998 · Mr. Chapman

City Hall

1996 · ★ 6.0 · Lenny Lasker

Truth or Consequences, N.M.

1997 · ★ 6.2 · Alan Gryder

The Last Married Couple in America

1980 · Tom

Thank God It's Friday

1978 · ★ 5.3 · Dave

D(e)ad

2025 · Harris, Executive Producer

Young Harry Houdini

1987 · Assistant

City in Fear

1980 · Henry Zeller

Looking for Lenny

2011 · Self

Bar Hopping

2000 · Agent 2

Tagteam

1991 · Marty

Confessions of a Hitman

1994 · Jeffrey

Never Say Never: The Deidre Hall Story

1995 · Marcus

Mr. Saturday Night

1992 · ★ 5.9 · Producer

With Friends Like These

1998 · Co-Producer

D(e)ad

2025 · Harris, Executive Producer

Lewis Black: Stark Raving Black

2009 · Executive Producer

Lewis Black: Black on Broadway

2004 · Executive Producer

Lewis Black: Red, White & Screwed

2006 · Executive Producer

Kathleen Madigan: Gone Madigan

2010 · Executive Producer

Kathleen Madigan: Madigan Again

2013 · ★ 7.7 · Executive Producer

Husbands, Wives & Lovers

1978

The Entertainers

1991