Special Guest Stars Maurice LaMarche voices Orson Welles Stephen Fry voices Terrance Stephen Fry voices Head of MI5 Stephen Fry voices Terrance's Father Stephen Fry voices Hazel Guest Stars Alex Désert voices Carl Carlson Kevin Michael Richardson voices MI5 Agents Tress MacNeille voices Olive Pamela Hayden voices Retirement Castle Lady Brian George voices MI5 Agents Chris Edgerly voices Out-Of-Breath Old Man Robin Atkin Downes voices MI5 Agents Dmitry Malanitchev voices Russian See 'N Say