There's an animal in my room. What should I do?

I was just woken up by my little dog whimpering and my cat scratching at the radiator. So I called the beagle into my room and he went insane trying to get under it. It took two of us to get the howling beagle out of my room. I looked with a flashlight and I think there is something fuzzy in there. It must be a mouse or something, how can I get it out without hurting it? I don’t want to get bit either. This has been going on for about a half hour now so I’m pretty sure if the animal had an option to leave on his own he would of by now.