Two-faced god who isn't Janus

When I was a kiddie I just loved lenticular images, you know, the ones you wobble to get a 3D effect. So there I was in Tesco with EdiSteve when I saw a Marvel Comics one featuring classic covers.

OK, you don't get the full effect here, but look, Thor has two faces. It's probably sad, but I'm sitting here waving it and grinning, trying to convince the cats of its sheer FABULOUSNESS!