(written from a Production point of view)
Rougas had a bit part in the 1960 film Where the Boys Are, which featured Frank Gorshin. He then appeared in 1968's Ice Station Zebra, along with Jim Goodwin, Lloyd Haynes, Jonathan Lippe, and William O'Connell.
In the 1970s, Rougas appeared in such films as Airport (with Michael Bell, Whit Bissell, William Boyett, Celia Lovsky, and Dallas Mitchell), Zabriskie Point (with Paul Fix), Grand Jury (starring Bruce Davison), and The Great Santini (in which he and Michael Strong play colonels). In the 1980s, he had small roles in Brian de Palma's acclaimed gangster drama Scarface (starring F. Murray Abraham and Harris Yulin), Sidney Poitier's musical Fast Forward (with Robert DoQui), the comic thriller Into the Night (with Bruce McGill), and the horror sequel A Nightmare on Elm Street 3: Dream Warriors (starring Craig Wasson).
Rougas appeared on several television series as well. In 1976, he reunited with his I Was a Teenage Werewolf co-star Michael Landon for an episode of Little House on the Prairie. He later appeared on the prime-time soap opera Dallas (with Mary Crosby and Paul Sorensen) and the NBC drama series L.A. Law (starring Corbin Bernsen, in an episode with Robert Costanzo and Stanley Kamel).
In addition to his work on screen, Rougas had a successful stage acting career in the US West Coast. He also performed in Chicago for many years. He wrote at least one play, a semi-autobiographical drama entitled Anatomy of Revenge, about a gay-bashing victim who seeks his own brand of vengeance. He also portrayed the lead role in the play, which ran 9 August–19 September 2004 in Chicago.  
- According to the Internet Movie Database, Rougas died on 19 June 2008, but this has yet to be confirmed. The Social Security Death Index does list a Michael Rougas who died on this date, but it is not known whether or not it is this Michael Rougas.