Ivor Donald Dean was a British stage, film and television actor.
1967 publicity still for The Saint
Claud Eustace Teal is a fictional character who made many appearances in a series of novels, novellas and short stories by Leslie Charteris featuring The Saint, starting in 1929. A common spelling variation of his first name in reference works and websites is Claude, however in his works Charteris uses the spelling without the 'e'.
Ivor Dean as Teal.