Inspector Van Horn is played by the late Theodore Bikel best known for playing Zoltan Karpathy in "My Fair Lady," as well as originating the role of "Georg Van Trapp" in the Broadway musical "The Sound of Music".
Nigel Allison is played by the late Joseph Maher best known for playing Bishop O'Hara in Sister Act (1992). He died on the 17th 1998 (age 64)