Roy Thinnes

as Johnny Paul

France Nuyen

as Tso-Tsing

Zulu

as Zulu

Ward Costello

as Captain Macintosh

Don Knight

as H.K. Muldoon

Ian McShane

as Sean Donovan / Father Horton / Colonel Millard Butler

Eric Braeden

as Ernest Graeber

Dennis Patrick

as Commander Yarnell

Alex Henteloff

as Dr. Edward Sherman

Frank Michael Liu

as Hikaru Sakai

Eric Christmas

as Father Murphy

Ernest Harada

as Hero Yamamoto

Harry Endo

as Dr. En-Ping

Lee Stetson

as Tanner