Cocoon

Jack Lord

Det. Steve McGarrett

Nancy Kwan

Rosemary Quong

Leslie Nielsen

Brent

Andrew Duggan

Miller

James Gregory

Jonathan Kaye

Khigh Dhiegh

Wo Fat

Lew Ayres

The Governor

Tim O'Kelly

Danny

Newell Tarrant

Doc

Zulu

Kono

Kam Fong

Chin Ho

Philip Ahn

Attorney General

Mitzi Hoag

May

Noah Keen

Dr. Bernard

Russell Thorson

Port Captain

Wright Esser

Capt. Schroeder

Yankee Chang

Tour Bus Driver

Iris Rainer

Jailed Hippie Girl

Dale Ishimoto

Arcturus Construction Guard

Soon-Tek Oh

Wo Fat's Lab Technician

Mark LeBuse

Arcturus Construction Foreman

Maxine Jennings

Mildred - Governor's Secretary

Bill Saito

Burglar

Gertrude Flynn

Landlady

Baird Miller

Agent Tailing McGarrett

Richard Kuga

Wo Fat's Lab Assistant

William Boyett

Agent in Brent's Office

Helen Torco

Hula Dancer

Paul Wendkos

Director

Leonard Freeman

Writer

Leonard Freeman

Producer

Richard L. Rawlings

Director of Photography

Albert Heschong

Art Direction

Buck Henshaw

Set Decoration

Morton Stevens

Music

Ira Heymann

Editor