Guest Stars John Larch as Dr. Killman Barbara Luna as Marnya Robert Wolders as Andreas Petros Mario Alcalde as Marius Co Starring William Boyett as Thrush Guard Jan Arvan as Thrush Authority Douglas Dick as Specialist Jack Bannon as U.N.C.L.E. Agent Ralph Ventura as Samos Don Hanmer as Filene J. David Jones as Helicopter Pilot Uncredited Hank Robinson as Thrush Agent Hal Taggart as Lab Technician Richard LaMarr as Worker Eddie Garrett as Lab Technician Sig Frohlich as Worker Daniel Núñez as Worker Mike Morelli as Worker Ben Frommer as Worker K.L. Smith as Thrush Guard