Mari Cox (played by Ashley Judd) is a protagonist in 21 Down.
Aunt Robbie (played by Nia Vardalos) appears in 21 Down.
Ms. Barr (played by Moira Kelly) appears in 21 Down.
Kevin (played by Dylan Walsh) appears in 21 Down.
Coach Decker (played by Richard T. Jones) appears in 21 Down.
Principal Struthers (played by Joshua Malina) appears in 21 Down.
Cheri (played by Melissa Bickerton) appears in 21 Down.
Assistant Coach (played by Max Adler) appears in 21 Down.