This is such a wild idea! I love how the irreverent humor of It's Always Sunny could mesh with the epic scale of the Lanterns. The idea of Charlie Kelly as a Green Lantern is hilarious, can you imagine him trying to handle the Power Ring? He'd probably end up using it for some crazy scheme.
I wonder how the rest of the gang would fit into the DC Universe. Dennis as a cosmic narcissist could lead to some funny moments too! Do you think they would keep their personalities intact, or would the DC setting change them a bit? I'd love to see how they interact with other heroes!