Del Monroe
Del Monroe was an American film, television and stage actor. He is best known for his role as Seaman Kowalski in the television series Voyage to the Bottom of the Sea, which was broadcast on ABC from September 14, 1964 to March 31, 1968.
Monroe was born in Santa Barbara, California. After a tour of duty in the United States Army he enrolled in the Pasadena Playhouse where he appeared in more thanplays.
Source: Wikipedia