Famous as the creator and producer of numerous popular television series, he built a resume that included Magnum P.I., Battlestar Galactica, Knight Rider, The Fall Guy, Quincy M.E. and Buck Rogers in the 25th Century.
At the start of his entertainment career, he was a songwriter for a successful vocal group called The Four Preps. He began his screenwriting and producing careers by penning an episode of The Fugitive and subsequently creating the hit Western series Alias Smith and Jones.
He won Edgar Awards for his television writing work on episodes of McCloud and Magnum, P.I. Also a composer, he was nominated in 1979 for a Grammy Award for his co-written score to Battlestar Galactica.
Over the course of his three marriages -- to Carol Jean Gourley, Janet Curtis-Larson, and Jeannie Marie Pledger -- he fathered a total of nine children (seven with Gourley and two with Curtis-Larson): Eric, David, Christopher, Danielle, James, Caroline, Nicole, Kimberly, and Michelle.
While he was developing the series that would become Battlestar Galactica, Larson was mentored by Star Trek screenwriter Gene Coon.