Mario + Olivia

Mario and Olivia are a Duo of contestants in RCD. They started off aligning themselves with G.R.A.S.S., but they eventually moved in with The Psychonauts after the first challenge. After the 9th challenge's elimination, they moved to The World of Girl Love.

Mario
Mario is perhaps one of the most famous Video-Game Characters in history. This just happens to be a very flat incarnation of him named Paper Mario. He acts roughly the same as he does in his source games.

Olivia
Olivia is Paper Mario's companion in Paper Mario: The Origami King. She also acts the same as she does in her source game, being a helpful friend to Mario.