Commanded by Captain Michael Murphy, Sealab is dedicated to the exploration of the seas and the protection of marine life. Among other things, the crew of Sealab faced such challenges as attacks from sharks and giant squids, potential environmental disasters, and threats to Sealab and marine life from shipping.

• Pamelyn Ferdin
• John Stephenson
• Jerry Dexter
• Ann Jillian
• Ross Martin
• Josh Albee
• William Callaway