...Anthony Edwards, "Dr Mark Greene" of ER...
...and British actor Anthony Andrews.
I mean, when they announced the second one was cast on ER, I thought, "that white-haired kind of Estes Kefauver-looking guy? Or the guy from Brideshead Revisited"? It was years before I realized the second one was a different person entirely. Even now, I have to think about it before I mention any of them.
So I combined them all into one actor. Meet Andrew "Ed" Anthony-- 50-year veteran with hundreds of roles in the TV shows you love best.
(Remember when he was the guy who done it on Mason? "I told her I just needed more time! But she laughed at me!")
*UPDATE*
"Edward Edwards"?!
For the love of humanity, noooo...