Prof. Millard pretends to be dead and helps Jeff King ferret out Vulcan, the evil traitor at the science academy. Donning his Rocket Man costume King goes from one hair raising rescue to the next in order to keep the newly invented Decimator out of the clutches of Vulcan and his minions.
Tristram CoffinJeff King
Mae ClarkeGlenda Thomas
Don HaggertyTony Dirken
James CravenProf. Millard
I. Stanford JolleyProf. Bryant
House Peters Jr.Burt Winslow
Douglas EvansChairman
Ted AdamsMartin Conway
Stanley PriceGunther Von Strum
Dale Van SickelMartin/Professor Drake/GatesTom SteeleKnox/Taxi Driver
David SharpeBlears/Cliff/Stark
Eddie ParkerRowan
Buddy RooseveltPhilips
Marshall BradfordProfessor Graftner
