I assure you I do not.
I am a neon pink and purple, 80cm kobold called Djourner in real life.
But for real, this is kind of what a persona is. I roleplay the person I want to be, and since most of my friends are also people like me, it has come to a point where the man behind the Djourner is largely unknow, and more people have know me like this than the real me... And honestly I prefer that, i tottaly get why artists like Yoko taro, the guys from daftpunk, or gorillaz prefer not to show their faces.
if you're asking about an in world persona that exists inside the story we're telling, that I can say I do not.
My characters tell their story, I don't have anything to do with it personally... I don't even agree with them most of the time, I just write what they think xD