There's immense fun to be had as long as you can sort of sneak it past DC. I have been told on occasion that I need to have more respect for these characters.
I like to stay within the zone of one character. It would disturb me to break away and go into an entirely different territory.
You can't take a character anywhere they don't expect the character to go. But within those confines is where creativity lies.
That's what I love doing - finding ways to make a personality as extreme as you can before it starts to get goofy.
There are some actors that want you to call them by their character's name and they have no relationship with you outside of the character. But I like to get to know who I'm working with so that we can relax together, and it's more fun.
If a comic is himself, there'll be things he can't do - because he has to adhere to that persona.
In many ways, playing a real person is slightly easier because you have a road map. When you're playing someone fictitious, there's myriad ways in. With a real person, there's boundaries, and that sometimes makes the work easier.
If you don't see me act, my work is done. The actor must never take the character beyond the scope of the movie.