The Vanishers
Donald Hamilton
Matt Helm (23)
The Threateners
Matt Helm (26)
Texas Fever
The Terrorizers
Matt Helm (18)
The Terminators
Matt Helm (16)
The Silencers
Matt Helm (4)
The Revengers
Matt Helm (19)
The Retaliators
Matt Helm (17)
The Removers
Matt Helm (3)
The Ravagers
Matt Helm (8)
The Poisoners
Matt Helm (13)
Murder Twice Told
Matt Helm - the Retaliators
Matt Helm (1)
Matt Helm - the Intimidators
Matt Helm (15)
Matt Helm - the Devastators
Matt Helm - the Demolishers
Matt Helm - the Betrayers
The Intriguers
Matt Helm (14)
The Intimidators
The Interlopers
Matt Helm (12)
The Infiltrators
Matt Helm (21)
The Frighteners
Matt Helm (25)
The Devastators
Matt Helm (9)
The Detonators
Matt Helm (22)
Death of a Citizen
The Big Country
The Betrayers
Matt Helm (10)
Assassins Have Starry Eyes
The Annihilators
Matt Helm (20)