Theo James Walter Clark Jr. Actor Chi McBride Detective Don Owen Actor Kevin Alejandro Detective Christian Arroyo Actor Bonnie Somerville Detective Deborah McKenzie Actor Holt McCallany Detective Joe Diaco Actor Stella Maeve Agnes Clark Actor Ron Yuan Guest Star Odette Annable Guest Star Thaddeus Daniels Guest Star Stephanie Brait Guest Star Samantha Buck Guest Star McCaleb Burnett Guest Star Brandon Gill Guest Star Cheryl Wills Guest Star Robbie Sublett Guest Star James Biberi Guest Star Subhash Mandal Guest Star Nicolette Pierini Guest Star Greg Berlanti Executive Producer Nicholas Wootton Executive Producer, Writer Richard Shepard Executive Producer Jace Alexander Director