They say they go in three's

RIP Mr Culp

Los Angeles, California (CNN) -- Robert Culp, the actor who rose to fame as secret agent Kelly Robinson on the groundbreaking 1960s TV series "I Spy" and later played Ray Romano's father-in-law on "Everybody Loves Raymond," has died. He was 79.

Culp died of a fall in a Los Angeles park, said his publicist, Dick Delson. Delson had no further details.