Mark Blum (May 14, 1950 - March 26, 2020) was an American actor in movies, on television and stage. He found success with a lead role as Gary Glass in the 1985 film Desperately Seeking Susan, which he followed up the next year with a supporting role as Richard Mason in Crocodile Dundee. He had a regularly recurring role as Union Bob on the Amazon Prime series Mozart in the Jungle from 2014 to 2018. He was married to actress Janet Zarish from 2005 until his death in 2020 from COVID.
2020Sister of the Groom as Nat
2020Human Capital as Rex
2020Victor in Paradise as Martin
2019Almost Family (1 Episode) as Dr. Lewis
2019Love Is Blind as Dr. Klienart
2018You (4 Episodes) as Mr. Mooney
2018Succession (2 Episodes) as Bill
2017The Good Fight (1 Episode) as Julius Kreutzer
2017Coin Heist as Mr. Smerconish
2016No Pay, Nudity as Leon/Lester's Agent
2015Difficult People (1 Episode) as Rabbi Schecter
2015How He Fell in Love as Henry
2014Mozart in the Jungle (30 Episodes) as Union Bob
2013Blumenthal as Saul Blumenthal
2012Elementary (1 Episode) as Irvin Langstrom
2012A Wife Alone as George
2011The Green as Stuart
2011I Don't Know How She Does It as Lew Reddy
2011Jesse Stone: Innocents Lost as Dr. Parkinson
2010Step Up 3D as NYU Professor
2010Night Springs as Dr. Barclay Colvin
2009Mercy (1 Episode) as Unknown
2009The Good Wife (1 Episode) as Julius Kreutzer
2008Fringe (1 Episode) as Claus Penrose
2008New Amsterdam (1 Episode) as Dr. Macvittie
2007The Warrior Class as Richardson
2005Life on the Ledge as Father
2003Shattered Glass as Lewis Estridge
2002CSI: Miami (1 Episode) as Jim Rennert
2001Law & Order: Criminal Intent (1, 1 Episode) as Dr. Philip Oliver, Larry Lewis
2001The Judge as Harry Hobbs
2001The Judge (2 Episodes) as Harry Hobbs
2001Zen and the Art of Landscaping as Richard Baxter
2000Ed (1 Episode) as Arnold Bancroft
2000Deadline (1 Episode) as Unknown
2000Down to You as The Interviewer
1999The West Wing (1 Episode) as Rep. Katzenmoyer
1999Family Law (1 Episode) as Russell Hollenback
1999Law & Order: Special Victims Unit (1 Episode) as David Arnoff
1999Judging Amy (1 Episode) as Richard Kinrich
1999Getting to Know You as Darrell
1999The Sopranos (1 Episode) as Randall Curtin
1998You Can Thank Me Later as Edward Cooperberg
1997The Defenders: Payback as Jackson
1997Stag as Ben Marks
1997The Practice (1 Episode) as State Attorney Michael Scannel
1996Sudden Manhattan as Louis
1995The Low Life as Matthew Greenberg
1995Central Park West (5 Episodes) as Unknown
1995Indictment: The McMartin Trial as Wayne Satz
1995Denise Calls Up as Obstretrician
1995Miami Rhapsody as Peter
1994New York Undercover (1 Episode) as Dr. Vincent
1993NYPD Blue (1 Episode) as Dr. Roland Sachs
1993Frasier (1 Episode) as John
1992Condition: Critical as Dr. Howard Zuckerman
1992Emma and Elvis as Ben
1990Law & Order (1, 1, 1, 1 Episode) as A.D.A. Frank Lazar, Doctor, Defense Attorney Michael Aronson, Frank Lazar
1990Wings (1 Episode) as Larry Mohr
1990Capital News (13 Episodes) as Edison King
1989Worth Winning as Ned Braudy
1988Roseanne (1 Episode) as Unknown
1988The Presidio as Arthur Peale
1987Sweet Surrender (6 Episodes) as Unknown
1987Blind Date as Denny Gordon
1986Crocodile Dundee as Richard Mason
1986Just Between Friends as George Margolin
1985Desperately Seeking Susan as Gary Glass
1984Miami Vice (1 Episode) as Unknown
1984Things Are Looking Up as Ray Litertini
1983Lovesick as Intern Murphy
1982St. Elsewhere (1 Episode) as Unknown
2020Sister of the Groom ... In Memory Of