Don Mitchell, the actor who played TV detective Ironside's sidekick, has died at the age of 70. He passed away from natural causes on Sunday (08Dec13). Mitchell was best known for his role as ex-convict Mark Sange, the assistant to Raymond Burr's wheelchair-bound character in the U.S. police series from 1967 to 1975. He reprised the role for a 1993 TV movie. He also appeared on TV shows The Fugitive, McMillan & Wife, Wonder Woman and I Dream of Jeannie, and starred opposite Pam Grier in 1973's cult film Scream Blacula Scream. Mitchell was married to model Emilie Blake, with whom he had a daughter, from 1969 to 1970 and actress Judy Pace from 1972 to 1986. The couple had two daughters, one of whom is The Young and the Restless actress Julia Pace Mitchell.