Quiller is a British drama television series starring Michael Jayston. The series premièred with the episode The Price of Violence on 29 August 1975 on BBC One. Quiller is the alias of a fictional spy created by English novelist Elleston Trevor who featured in a series of Cold War thrillers written under the pseudonym "Adam Hall". The second episode's script - Tango Briefing - was written by "Adam Hall", adapted from his own novel of the same name. All the other episodes were written for the series.