'Forgetting Sarah Marshall' Actor -- Dead at 65

12/20/2010 8:28 PM PST
Steve Landesberg -- famous for his roles on "Barney Miller" and more recently "Forgetting Sarah Marshall" -- has died ... this according to the actor's agent who spoke with TMZ.

Steve Landesberg Death
We're told Landesberg died of cancer early this morning.  He had been battling the disease for a while.

Landesberg played Dr. Rosenbaum -- the pediatrician -- in "Sarah Marshall."  But he was more famous for his role as Det. Sgt. Arthur Dietrich on the TV show "Barney Miller," which ran from 1975 - 82.

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