A failed Quinn Martin pilot for a series starring a Hawaii-based government counter intelligence agency run by the indomitable Aunt Mary. In this, his only adventure, Diamond Head has to prevent the evil Tree from stealing a deadly nerve toxin gas and selling it to foreign powers. To help Diamond Head is the Dragon Lady and Zulu.
as Johnny Paul
as Tso-Tsing
as Zulu
as Captain Macintosh
as H.K. Muldoon
as Sean Donovan / Father Horton / Colonel Millard Butler
as Ernest Graeber
as Commander Yarnell
as Dr. Edward Sherman
as Hikaru Sakai
as Father Murphy
as Hero Yamamoto
as Dr. En-Ping
as Tanner
