In addition to M*A*S*H, Arbus appeared on countless classic TV shows including Taxi, The Odd Couple, Starsky & Hutch and Matlock. In more recent years, he had guest-starred on Judging Amy, NYPD Blue and Curb Your Enthusiasm. But he became most famous for his role as Freedman on M*A*S*H, despite only appearing in about a dozen episodes of the series.
Before his acting career, Arbus worked with his wife Diane Arbus (maiden name Nemerov), who became a famous photographer in her own right. Their photography business ended up securing contracts with major fashion magazines including Glamour and Vogue. The couple divorced in 1969 and Diane committed suicide in 1971 at age 48.
In 1976, Arbus married Mariclare Costello, who survives him, along with two daughters from his first marriage -- Amy and Doon -- and a daughter from his second marriage, Arin, according to the Times.