While I don't have a look-alike myself, a friend of mine who likes musical theatre came into school with her hair in a bun and a long white coat on and I literally pulled her aside and asked her if she'd seen Great Comet and was cosplaying as Denée Benton's Natasha or if this was just a huge coincidence and she looked exactly like Denée Benton. Turns out she hadn't listened to it yet, so I just have a friend who looks exactly like Denée Benton.
"I think that when a movie says it was 'based on a true story,' oh, it happened - just with uglier people." - Peanut Walker, Shucked