Studied at St Edmund Hall, Oxford, from 1962 and joined the Oxford University Dramatic Society. In 1964, he participated in the Oxford Revue at the Edinburgh Festival, alongside the likes of future Monty Python stars Michael Palin and Terry Jones.
Qualified with a BA degree in Law at the University of Natal in Durban.
During the 1970s he was a member of the Reunion Theatre Company who staged shows at the Dolphin and Anchor Studio Theatre in Chichester.
In addition to playing character roles in films and on TV, he has also been active as a voice actor in animated films, including All Dogs Go to Heaven (1989), An American Tail: Fivel Goes West (1991).
In 1968, Pegram married Zanzibar born ex Royal Ballet principal and actress April Olrich.