Cast Credits Lewis (2006) Guest starring as Mr. Atkins Episode 6x01: The Soul of Genius (May 16, 2012) Casualty (1986) Guest starring as Walter Aitken Episode 29x05: Born Lucky (Oct 4, 2014) Doctor Who (1963) Guest starring as The Castellan (5 episodes) Episode 20x04: Arc of Infinity, Part Four (Jan 12, 1983) Episode 20x03: Arc of Infinity, Part Three (Jan 11, 1983) Episode 20x02: Arc of Infinity, Part Two (Jan 5, 1983) Episode 20x01: Arc of Infinity, Part One (Jan 4, 1983) Episode S20 Special: The Five Doctors (Nov 25, 1983) View 2 more View 2 less
