This stage musical is written to be performed by 8 actors, but that number can be reduced to 7 by having one actor portray the roles of both the Engineer and the Doctor.
- Aged Ralph Peer
- Engineer
- Jimmie Rodgers (1)
- Carrie Rodgers (2)
- Anita Rodgers
- Young Ralph Peer
- Doctor
- Mrs. Bedell (3)
(1) Part requires singing, yodeling and light dancing
(2) Part requires singing and light dancing
(3) Part requires light dancing