Crewman (The Tomb of the Cybermen)

A crewman was a member of Captain Hopper's crew that transported Professor Parry's expedition to Telos in the 25th century. When they landed, they blew off part of the mountain which revealed a pair of doors. When Kaftan offered fifty pounds to the first man who opened the doors, he tried but was electrocuted when he touched the doors and died. (TV: The Tomb of the Cybermen)

Behind the scenes
The crewman was played by Ray Grover.