that isn’t the actor.
You get a lot of people on Twitter doing role play for soap characters, it’s weird but there’s a lot of it out there. I’ve seen it for casualty and hollyoaks too. This looks like a weird porny version of that.
It’s someone sticking pictures on porn bodies. duck knows why, but they get off on it. Just because someone has an account of a fictional character doesn’t mean it’s the actor who plays them behind it. In fact I don’t think any actor would do that, they’d just post under their own name because the whole point is to increase their profile and fame with social media.