Mark Lonow
Acting
Known for
Columbo
1971
Chicago Hope
1994
Quantum Leap
1989
Beverly Hills, 90210
1990
Sabrina, the Teenage Witch
1996
Falcon Crest
1981
The Rockford Files
1974
Murphy Brown
1988
Moonlighting
1985
All in the Family
1971
Rude Awakening
1998
National Security
2003
City Hall
1996
Madame's Place
1982
DAG
2000
Good Advice
1993
Conrad Bloom
1998
Thank God It's Friday
1978
Mr. Saturday Night
1992
Truth or Consequences, N.M.
1997
Looking for Lenny
2011
D(e)ad
2025
Confessions of a Hitman
1994
The Last Married Couple in America
1980