physically speaking, I not sure about him BUT if he made the voice, that would be hella cool dude! Charlie’s voice really fit Deadpool’s personallity in my head (I personally would prefer two persons playing Deadpool, one for the body, one for the voice, I would prefer if he stayed in costume the whole movie, and if he does take off his mask, that looked like this also, Big BertaxDeadpool FTW)

maybe if he appeared along side with Cable, that would be hilarious becuase it would be kinda adorable seeing Deadpool all tiny compared to a super big Cable, which btw, my dreamcast for Cable is Kevin Nash!