Mr. Shaw was born in Reading, England, and served in the army during World War II. He met Lansbury when they were both working for M-G-M. They were married in London in 1949 and enjoyed one of the seemingly rare long-running show-business marriages.
Over the years, Mr. Shaw was an agent for William Morris, representing such stars as Robert Mitchum and Katharine Hepburn. He returned to M-G-M in the 1960s to be assistant head of production, and would return to William Morris.
He and his sons created Corymore Productions at Universal Studios in 1987 and co-produced the hit TV series, "Murder, She Wrote," starring Lansbury.