A remarkable invention turns a nine-year-old boy named Joe into a secret agent with super-powers and plunges him into a sensational career.
Len Jones
as Joe McClaine (voice)
Rupert Davies
as Professor Ian 'Mac' McClaine (voice)
Keith Alexander
as Sam Loover / Russian Pilot / Moscow Air Defence Director / Anton / Captain William Barry (voice)
David Healy
as Shane Weston / Russian Commander / Base 513 Controller / Kramer / Bates / Commander Kovac (voice)
Jeremy Wilkin
as General / Officer / Lieutenant / Tanker / Hunter 2 / B107 Co-Pilot Hal / 2nd Russian (voice)
Gary Files
as Reporter / Russian Radio Operator / Co-Pilot Frank Casper / Agent 26 / Fearless Foley / Dr. William Kelvin (voice)
Sylvia Anderson
as Stewardess / Mrs. Mary Rose / Mrs. Ada Harris (voice)
