Gerald Taylor was a Dalek Operator in the first Dalek serial - The Daleks - in 1963/1964, in Dalek Invasion of Earth, 1964, The Chase, 1965, Mission To The Unknown, 1965, Dalek Masterplan, 1965/1966, The Power of the Daleks, 1966 and The Evil of the Daleks, 1967.

The Chase

Dalek Masterplan

Power of The Daleks

Evil of The Daleks

He was also a Zarbi in The Web Planet, (1965) as well as the voice of WOTAN and a War Machine in The War Machines, (1966). He also had the minor roles of Damon's Assistant in The Underwater Menace and Baker's Man in The Dæmons (1971) and the supporting role of Vega Nexos in The Monster of Peladon.

Zarbi

WOTAN

War Machine