[2] Pacey had a regular role as Del Tarrant in Blake's 7 appearing in every episode of the third and fourth seasons of the science fiction series; he also played the role of Del's twin brother Deeta Tarrant in one episode.
[3] Other notable television appearances include playing Klaus Von Heinig in The Cedar Tree, Heartbeat, Lovejoy, M.I.T.
His film roles include Aces High (1976), Return to House on Haunted Hill (2007) and Boy A (2007).
[5] Pacey was nominated for an Olivier Award for the role of Bertie Wooster in the musical By Jeeves.
[9] Pacey has narrated more than 200 audiobooks,[citation needed][10] including works by Joe Abercrombie, James Herbert, Joanne Harris and Martin Amis.