In the context of your situation, or in general? Because in regards to your situation, they'll just need to be reminded. And if you need somebody to help reminding people, Natasha's good for that, and I'll volunteer myself.
In regards to people in general? There are a lot of people here from different places, different experiences, different walks of life. Getting everybody on board is often like herding cats. I'm only recently figuring stuff out, but when I first got here I was stoically thinking I still had to play the role of Sorcerer Supreme. I've chilled out a lot since then.
You're not an actor, but unfortunately you've been typecast into the role of Great American Super Soldier. A symbol is lot more difficult to shed, especially when you were great for the part. It doesn't help that you were immortalized after your supposed death in the minds of people through the media.
Hate to tell you, but it may take time.
Good news is, there are people from other universes who don't know jack about Captain America, so they won't have those same expectations. Find new friendships there.
I think the production is a great opportunity. The director's name is Hugh. He's holding a read through and starting to block the show today at the theater. Wander on in, he's very friendly and I'm certain he'd appreciate your help.
Heh. I'm not a psychiatrist by any stretch of the imagination, so please don't ask me to lead a support group. This advice comes from hard experience. I was formerly a neurosurgeon, one of the best in the world, until a car accident crushed my hands and rendered them useless to perform surgery. I pursued the Mystic Arts, instead. I keep the 'doctor' title because damn it, I went through medical school to earn it and paid my tuition.