Larry Starczek (played by Tom Selleck) is a protagonist in Reversible Errors.
Experienced detective sergeant who leads the initial investigation into the bar murders and oversees the arrest and trial of Squirrel. Arthur Raven (played by William H. Macy) is a protagonist in Reversible Errors.
Muriel Wynn (played by Monica Potter) appears in Reversible Errors.
Gillian Sullivan (played by Felicity Huffman) appears in Reversible Errors.
Erno Erdai (played by James Rebhorn) appears in Reversible Errors.
Collins Farwell (played by Shemar Moore) appears in Reversible Errors.
Genevieve Carriere (played by Yanna McIntosh) appears in Reversible Errors.
Talmadge Loman (played by Nigel Bennett) appears in Reversible Errors.