Roy Thinnes
— Johnny Paul
France Nuyen
— Tso-Tsing
Zulu
— Zulu
Ward Costello
— Captain Macintosh
Don Knight
— H.K. Muldoon
Ian McShane
— Sean Donovan / Father Horton / Colonel Millard Butler
Eric Braeden
— Ernest Graeber
Dennis Patrick
— Commander Yarnell
Alex Henteloff
— Dr. Edward Sherman
Frank Michael Liu
— Hikaru Sakai
Eric Christmas
— Father Murphy
Ernest Harada
— Hero Yamamoto
Harry Endo
— Dr. En-Ping
Lee Stetson
— Tanner