Nathan Fillion John Nolan Actor, Executive Producer Alyssa Diaz Angela Lopez Actor Richard T. Jones Sergeant Wade Grey Actor Titus Makin Jr. Jackson West Actor Mercedes Mason Captain Zoe Andersen Actor Melissa O'Neil Lucy Chen Actor Afton Williamson Talia Bishop Actor Eric Winter Tim Bradford Actor Valeri Ross Dr. Rogers Guest Star Sarah Oh Heather Guest Star Heather McComb Marilyn Guest Star Myndy Crist Abby Guest Star Alexi Hawley Executive Producer Mark Gordon Executive Producer Michelle Chapman Executive Producer Jon Steinberg Executive Producer David Radcliff Writer Omar Madha Director