Isn't that only the usual three? I count Hopper, Coleman, and McClanahan.
Plus Art Linkletter, Ronnie James Dio, Lena Horne, Lynne Redgrave, Dixie Carter, John Forsythe, Robert Culp, Fess Parker, Peter Graves, Merlin Olsen, Corey Haim, JD Salinger, Pernell Roberts, Teddy Pendergrass. And those are just the celebrities I've heard of.