Marko, an illegal immigrant, believes that if the Police find him they will deport him for having a forged passport. In reality, the Police are searching for him urgently, because he is carrying a radiocative isotope capable of killing any one in close proximity. After help from Marko's girlfriend Mary, Keel traces Marko using a geiger-counter to Milan: a crook that smuggles immigrants for money. With the isotope surrounded by lead, Marko and Milan are taken to hospital for treatment.

Cast & crew * mug shots in sepia denote images sourced from other productions.

not billed in TV Times magazine
Marko Ogrin	George Pravda {007}{Callan}{The Professionals}{Dr Who}{The Prisoner}{The Saint}{Department S}
Mary Somers	Christine Pollen {Dr Who}
Carol Wilson	Ingrid Hafner {Police Surgeon}{regular}
Dr David Keel	Ian Hendry {Dangerman}{New Avengers}{Police Surgeon}{The Saint}{The Sweeney}{regular}
John Steed	Patrick Macnee {New Avengers}{007}
Dr Graham	Gerald Sim {regular}{New Avengers}{The Professionals}{Adam Adamant}
Inspector Tudor, Milan, Mary's son, Frane
crew
Teleplay by	Fred Edge
"The Avengers" Theme composed and played by	Johnny Dankworth
Designed by	Alpho O'Reilly {Police Surgeon}
Producer	Leonard White {Callan}{Police Surgeon}
Directed by	Robert Tronson {Callan}{The Saint}{Randall and Hopkirk}

The Avengers

Season 1, 1961 - Episode 8

The Radioactive Man

by Fred Edge

Cast & crew * mug shots in sepia denote images sourced from other productions.