---
name: "Mark Blum"
canonical: "https://film.one/person/mark-blum"
roles: ["Actor"]
born: "14 May 1950"
died: "26 March 2020"
reviewed_on_fi1m: 1
updated: "2026-09-17T01:07:33.658065+00:00"
licence: "© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL."
---

# Mark Blum

Actor. Born 14 May 1950 in Newark, New Jersey, USA. Died 26 March 2020.

## Details

- **Work:** Actor
- **Born:** 14 May 1950, Newark, New Jersey, USA
- **Died:** 26 March 2020

## Biography

Mark Blum was an American actor who worked in film, television and theatre. Born in Newark, New Jersey, he began acting in the 1970s and gained early screen recognition with the lead role of Gary Glass in the 1985 film *Desperately Seeking Susan* and a supporting role as Richard Mason in *Crocodile Dundee* (1986).

On television he appeared in numerous series, including *The Sopranos* (1999), *Law & Order: Special Victims Unit* (1999), *You* (2018) and *Succession* (2018). He had a recurring role as Union Bob in the Amazon series *Mozart in the Jungle* (2014–2018) and played Claus Penrose in *Fringe* (2008). Blum also maintained an active stage career, winning an Obie Award for his performance in *Gus and Al* (1988–89) and appearing on Broadway.

He was married to actress Janet Zarish from 2005 until his death in Manhattan on 26 March 2020 from complications of COVID-19.

*Sources: imdb.com, hollywoodreporter.com, en.wikipedia.org.*

## On Fi1m (1)

- *Fringe* (2008), Fi1m 80, as Claus Penrose — [page](https://film.one/tv/fringe.md)

## Also known for

- *Law & Order: Special Victims Unit* (1999), David Arnoff
- *You* (2018), Mr. Mooney
- *Crocodile Dundee* (1986), Richard Mason
- *Step Up 3D* (2010), NYU Professor
- *Elementary* (2012), Irvin Langstrom
- *Succession* (2018), Bill
- *CSI: Miami* (2002), Jim Rennert
- *Billions* (2016), Dr. Mark Rutenberg

---
© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL. Canonical: https://film.one/person/mark-blum