Clive Merrison played Jim Callum in The Tomb of the Cybermen and the Deputy Chief Caretaker in Paradise Towers. He also voiced Sir Frederick Maltravers in the BBV Productions audio story The Barnacled Baby and George Augustus in the Big Finish Doctor Who audio story The Contingency Club.
Merrison has had several recurring roles on television, e.g. Reilly, Ace of Spies (as Boris the Russian), Kit Curran (as Damien Appleby) and The Borgias (as Ascanio Forza). One-off appearances include the likes of Yes, Prime Minister, Foyle's War, The Bill and Peep Show.
On radio he has played Sherlock Holmes, a role played in other media by Peter Cushing, Tom Baker, Jonathan Pryce and Nicholas Briggs. (He is said to be the the only actor to have portrayed the character in the entire Conan Doyle canon of "Sherlock Holmes" stories.)