How do I rotate(roll) my default character?

So my character is basically a static mesh and I’ve added into the component into the blueprint. The camera is also following the character and I am also able to roll my camera when the user hits “Q” on the keyboard. However, that’s not what I want… I want to be able to ROTATE (ROLL) my character like a ball just like how it can move forward and backwards, but what I need is it has to rotate(roll) without rolling the camera.

I am guessing it’s some movement input but I’ve no idea how to do it, can anyone help me?