Complex sentence: One of his most famous off-Broadway roles was a voice-over for Rankin-Bass's "The Year Without a Santa Claus", in which he played the embittered Heat Miser opposite Dick Shawn's Snow Miser.
Split into simpler sentences: One of his most famous off-broadway roles was a voice-over for Rankin-Bass's The Year without a Santa Claus. He played the embittered Heat Miser, opposite Dick Shawn's Snow Miser.