Loved 20,000 LEAGUES as a kid, glad to hear the outpouring of love/appreciation for SPARTACUS over these last couple days. I happened to just purchase it on Blu-Ray a couple weeks ago. I'll have to give it a spin soon.
Like many others I first encountered him watching 20,000 Leagues Under the Sea. (Which I loved.) But he gave soooo many great performances. Him and Burt Lancaster were just titans to me. But my favourite of his perfomances was probably his role in Ace in the Hole. That one just blew me away.