Up from the Depths

The staff and vacationers at a first-class resort on the island of Maui are beginning to mysteriously disappear. A biologist believes that an underwater earthquake has caused a giant and very hungry dormant prehistoric fish to be released from its slumber. The fish voraciously helps itself to a tourist buffet. Now it is open season for the local fishermen to find and kill the creature.

• 
  Charles B. Griffith
• 
  Leo Martinez
• 
  Bert Amazan Jr.

• 
  Sam Bottoms
  Greg Oliver
• 
  Susanne Reed
  Rachel McNamara
• 
  Virgil Frye
  Earl Sullivan
• 
  Kedric Wolfe
  Oscar Forbes
• 
  Charles Howerton
  Dr. David Whiting
• 
  Denise Hayes
  Iris Lee
• 
  Chuck Doherty
  Ed Bennett
• 
  Helen McNeely
  Louellen Bennett
• 
  Ken Metcalfe
  Mr. Holland
• 
  Randy Taylor
  Jimmy
• 
  Dave D'Martyn
  Tourist #1
• 
  Clem Persons
  Maintenance Man (as Clem Parsons)
• 
  Peter Cooper
  Nieberg
• 
  Katherine Scholy
  Darleen
• 
  Ken Petruic
  Harry
• 
  Bobby Greenwood
  Tourist #2
• 
  R. Lee Ermey
  Arnold (uncredited)