He wrote ten television series, including Maverick and Marcus Welby, M.D..[1] Campbell was born in Newark, New Jersey.
[3] He also sold two stories to Kirk Douglas's Bryna Productions: King Kelly about a soldier who sets himself up as a ruler in the South West after the Civil War,[4] and The Allison Brothers.
In 1956 he and his brother announced they had purchased a story about John Ashley, Requiem for an Outlaw and intended to make it independently but the film was not made.
[6] Campbell was hired to work on the screenplay Man of a Thousand Faces, the biography of Lon Chaney.
[11][12] His 1978 novel, Where Pigeons Go to Die, was adapted into a television film of the same title for NBC by actor and filmmaker Michael Landon.
[1] On February 2, 2003, the Robert Campbell Balcony over the Harrison Memorial Library's main reading room was named in his honor.