1. Elliot Page, actor from the X-Men, Inception, and the Umbrella Academy, came out as trans. I'd link to an article but they all seem to either dead-name Page, and/or use a screen shot of text that is inaccessible.

The Guardian appears to transcribe the full text of Page's announcement (although not in a block of its own, which would have been even handier) and uses the actor's former name once to identify him for the public, which is in accordance with GLAAD's style guide.