Just saw the PBS adaptation of Agatha Christie’s Miss Marple mystery At Bertram’s Hotel, and a pair of twins is played by the same guy, according to the final credits. It’s a little odd, because the part(s) could have been played by actual twins. Why incur all the expense for CGI work and splitscreens (they appeared together several times) when you could just use real twins? It wasn’t even all that big a part.
Not quite what the OP is asking, but John Lithgow played both Lord John Whorfin and Dr. Emilio Lizardo in Buckaroo Banzai.
Cartman had an “evil” twin (actually the twin was not evil, since Cartman is evil enough) in South Park. I am not sure if it was the same actor both times or two different actors, though.
Sorrell Booke played Jefferson Davis (aka Boss) Hogg in The Dukes of Hazzard and his twin Abraham Lincoln Hogg - apparently their parents were Civil War Re-enactors or something. In this case of course, the main character was the evil twin.
By that token, SMG played Buffy and alt-Buffy, ASH played Giles and alt-Giles, Nick Brendon played Xander and alt-Xander, Seth Green played Oz and alt-Oz and so on. But that might be a bit obscure for the quiz.
I can’t believe I’m actually admitting to having seen this but… Stefanie Powers in Deceptions (1985). One twin is a housewife, the other a jetsetter. They decide to have fun and trade lives for a little while, which works out great until one of them dies.
Or Jeffrey Combs, who played Weyoun 4 in Deep Space Nine. And Weyoun 5. And Weyoun 6, 7, and 8. All clones of the same individual. So, hey, I guess he’s not really twins at all, but quints! *
But I won’t mention it because Twickster asked not to.
ETA: * Or octuplets, even, since #4 was the first Weyoun to appear.
Elvis Presley played twin brothers in a movie. I can’t remember the title. That’s kind of interesting, because Elvis did have a twin brother, who died at birth I believe.
I remember one of those biopics on Elvis with (I believe) Kurt Russell playing Elvis. They had Elvis talking to his imaginary twin in order to explain his supposed thoughts and motivations. It was purely a dramatic device, but it seemed to meet the needs of “getting inside” Elvis’s mind.
If Elvis actually played twins in a movie I didn’t see it, or, if I did, I don’t remember it. But I could easily be wrong since I don’t remember seeing more than a handful of Elvis movies.
I was thinking specifically about the episode in which Evil Willow is brought across when Anya and Willow (without her knowledge) are trying to get Anya’s pendant back.
Probably too obscure for a Philly Quiz, but
Anthony Starr is curently playing twins, Jethro and Van West, in Outrageous Fortune Outrageous Fortune (TV series) - Wikipedia . I believe there is a UK version in development - so in a couple of years, when the US version comes out, you can say I told you first.