He played Aslan in a BBC Radio 4 presentation of C.S. Lewis's "The Lion, the Witch, and the Wardrobe".
Did You Know?
Already an accomplished radio actor, he was originally cast to solely provide the voice for "Azal" in Doctor Who
(1963). When the "Doctor Who" producer saw how big he was, he gave him the part of "Azal" on the screen, as well.