Born on 30th December 1936 in London.
He attended Holloway County Grammar School.
Before becoming an actor, Frederick worked as a farmer and then served in the Royal Air Force. He then went to RADA.
Television appearances included: R3 (1965); Talking to a Stranger (1966); Theatre 625 (1966); The Three Princes (1968); an adaptation of Macbeth (1970); Dixon of Dock Green (1971); Justice (1972); Theatre-Minute Theatre (1972).
Frederick made a film appearance in The Dance With Death (1969).
Frederick was cast as Matt Skilbeck, husband of Peggy and son-in-law to Annie, making his appearance from the first ever episode of Emmerdale Farm transmitted on 16th October 1972. This is a role that would last for 17 years until his departure on 7th December 1989 (episode 1410).