Myers (The Sea Devils)

Chief Petty Officer Myers was a Royal Navy officer who took part in the battle to retake the HMS Seaspite. He shot and killed the Sea Devil guarding the Third Doctor and. He was then told to guard the Master, who hypnotised him, then knocked him out. (TV: The Sea Devils)

Behind the scenes
Myers' name is never given on-screen; it is only given in the closing credits.