WORST: Elizabeth Taylor on 'The Simpsons' The build-up was there: Maggie speaks! Elizabeth Taylor to guest star on "The Simpsons"! But when all was revealed, the Oscar Award-winning actress had lent her voice for exactly one word: "Daddy." Adorable? Touching? Yes. Did it require the services of Taylor? Nope. (She appeared on a later episode as herself.)
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Best & worst: TV stunt casting

Elizabeth Taylor

WORST: Elizabeth Taylor on ‘The Simpsons’

The build-up was there: Maggie speaks! Elizabeth Taylor to guest star on “The Simpsons”! But when all was revealed, the Oscar Award-winning actress had lent her voice for exactly one word: “Daddy.” Adorable? Touching? Yes. Did it require the services of Taylor? Nope. (She appeared on a later episode as herself.)  (Matt Sayles / Associated Press)

George Clooney

BEST: George Clooney on ‘South Park’

Four episodes into its run in 1997, “South Park” didn’t shy away from tackling big social issues. It even got a bit of help from Hollywood stud George Clooney, who helped Trey Parker and Matt Stone show some gay pride. But like the best of “South Park,” it didn’t preach. Instead, it barked, as Clooney played the role Sparky the gay dog.  (Joel Ryan / Associated Press)

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