Atr as mario
CrazyGuy as Luigi.
Since in the CTP crew lore Atr made crazyguy as a friend to the ctp crew in an effort to get himself (atr) added to the crew, however crazyguy became evil and atr saved the crew, which is what got him added. Atr thought this was an act by CrazyGuy but it wasnt... Atr met up with Crazyguy after and tried to thank him but Crazyguy said how he really wanted to kill everyone, and Atr got angry and started screaming at Crazyguy.
Theres the lore you need if you do do it.