Crowley played General Crix Madine in Return of the Jedi. He played Sergent François Duval in Son of the Pink Panther. Crowley went on to appear in Call Red, Father Ted (as Father Liam Deliverance), Dangerfield, Jonathan Creek, A Touch of Frost, Holby City,The Bill and Luther, among others. In 1987 Crowley auditioned for the role of the Seventh Doctor in Doctor Who.