Best known for playing the role of the fifth doctor on the UK's series, Doctor Who from 1981 to 1984.
He also portrayed Tristan Farnon on the long-running comedy series, All Creatures Great and Small.
He followed in William Hartnell's footsteps by playing an incarnation of the Doctor on Doctor Who.
He found his first entertainment job as an assistant stage manager at Nottingham Playhouse.
He married his third wife, Elizabeth Morton, in 2003 and has a daughter named Georgia from his second marriage.