Given how often Marvel characters cross and intersect in their own comic books and movies, video games featuring the franchise characters are often quick with the cameos. Deadpool is a very singular character, but the merc with the mouth is getting some company from the grizzled Cable in his upcoming game from High Moon Studios.
Rob Liefeld, who created both characters, wrote about the inclusion in his blog (via Joystiq). Fellow Liefeld creation Domino is already confirmed for the game as well, and Death will make an appearance too. No word on if the future son of Cyclops and Jean Grey will be a playable character, but his cold, grizzled demeanor tends to offset Deadpool's clinical insanity.