This Alex Sharp rings a bell but I can’t pinpoint why? Did we see him in something before?

Yes, it’s probably because Gillian filmed a movie with him last year. It was called UFO, I think it was filmed in Chicago and Gillian had this short red wig on. But it was cancelled so I guess we’ll never see it.
Also on this particular picture, he looks like a young Peter Morgan. That must be why 😂