Alexi Hawley Creator, Executive Producer, Writer Nathan Fillion John Nolan Actor, Executive Producer Mekia Cox Nyla Harper Actor Alyssa Diaz Angela Lopez Actor Richard T. Jones Sergeant Wade Grey Actor Titus Makin Jr. Jackson West Actor Melissa O'Neil Lucy Chen Actor Eric Winter Tim Bradford Actor Michael Beach Commander Percy West Guest Star Harold Perrineau Detective Nick Armstrong Guest Star Brent Huff Officer Smitty Guest Star Annie Wersching Rosalind Dyer Guest Star Crystal Coney Nurse Lisa Guest Star Hrach Titizian Ruben Derian Guest Star Mark Gordon Executive Producer Michelle Chapman Executive Producer Jon Steinberg Executive Producer Terence Paul Winter Executive Producer Rob Bowman Executive Producer Bill Norcross Executive Producer Bill Roe Director