Allen Fenwick / ... (3 episodes, 1997-2006)
Dr. Benton / ... (2 episodes, 1985-1986)
Victor Tomseth (as John-Peter Linton)
Leland Thompson (as John-Peter Linton)
Gad Bernstein (как John-Peter Linton)
Glen Parsons / ... (3 episodes, 1979-1982)
Dr. Burns (as John-Peter Linton)
Al (как John-Peter Linton)
Harry (as John-Peter Linton)
Marius Wolf (unknown episodes, 2002)