Richard Garland
Dale Drewer
Acting
Pamela Duncan
Dr. Martha 'Marti' Hunter
Acting
Russell Johnson
Hank Chapman
Acting
Leslie Bradley
Dr. Karl Weigand
Acting
Mel Welles
Jules Deveroux
Acting
Richard H. Cutting
Dr. James Carson
Acting
Beach Dickerson
Seaman Ron Fellows
Acting
Tony Miller
Seaman Jack Sommers
Acting
Ed Nelson
Ensign Quinlan
Acting
Charles B. Griffith
Seaman Mac, wears sunglasses
Writing
Maitland Stuart
Diving-double for male cast
Acting
Robin Riley
Diving-double for Pamela Duncan
Acting