Kevin Manser was a Dalek Operator in the first Dalek serial - The Daleks - in 1963/1964, in Dalek Invasion of Earth, 1964, Dalek Masterplan, 1965/1966 and in The Power of the Daleks (1966). He was also a Dalek operator in the 1965 Peter Cushing film adaptation of The Daleks.

Dalek Invasion of Earth

Dalek Masterplan

Power of The Daleks

He was also a Zarbi in The Web Planet, (1965)

Zarbi