She’s also pretty ethereal in Manon de Source. I always thought she was going to be a HUGE STAR.
Castiel and it isn’t even close.
Another vote for Tilda Swinton.
Perfectly exemplifies ‘Good is not nice’.
Even though Gabriel ain’t.
I’m slightly biased 
I love the fire and brimstone doing God’s work angels. Mighty Kushiel, of rod and weal
I love the whole cast of Kaori Yuki’s Angel Sanctuary, but in particular, Alexiel, Rosiel, Uriel, Raphael and Lucifer.
Now that I think about it, there’s a lot of angel imagery in anime/manga even for non-ange lcharacters. Every time CLAMP draws a character with wings, God kills a weeaboo.
Christina Ricci in Moby’s video for Natural Blues.
That’s what I came to say.
Tilda Swinton as Gabriel in Constantine
or Christopher Walken also as Gabriel in The Prophecy
OK, so Bruno Ganz is already mentioned, but Otto Sander also deserves mention for his Cassiel.
The best-looking angel would, of course, be Rie Rasmussen in Angel-A
Emma Thompson in the HBO version of Angels in America
Rickman … Dogma.
Thirded.
I’ve got to go with Paul Hogan. Though maybe it doesn’t count, because he’s only “Almost an Angel”