He played the same character (Potter) in
Secret Agent (1964) and
The Prisoner (1967), both of
which starred
Patrick McGoohan. This lends credence to the belief that
McGoohan's
Danger Man (1960) and
Secret Agent (1964) character, John Drake, is the same
person as Number Six, the character he later portrayed in
The Prisoner (1967)
although McGoohan, who was also the co-creator, producer and frequent
writer of the later series, claims that this was never his intention.