Warwick has had leading roles in UK television including the detective series The Terracotta Horse (1973) and the BBC science fiction horror serial The Nightmare Man (1981) (co-starring with Celia Imrie).
[3] His other notable credits include Jason King, The Onedin Line, Lillie (with Francesca Annis), Rock Follies, Tales of the Unexpected, Howards' Way, Bergerac, and Iris Murdoch's The Bell with Ian Holm.
[2] Warwick has also worked in American television, with guest starring roles in Scarecrow and Mrs. King, Civil Wars, Home Improvement, Murder, She Wrote, Babylon 5 and Alias amongst many others.
[6] He played Brad in The Rocky Horror Show on stage in London for the first year of its run in addition to many leading roles in the West End and in regional theatres across the UK and America.
He was Interim President of The American Academy of Dramatic Arts, Los Angeles campus 2007/8 and directed productions for their Company series.