Michael Chiklis Jim Powell Actor Julie Benz Stephanie Powell Actor Romany Malco George St. Cloud Actor Autumn Reeser Katie Andrews Actor Kay Panabaker Daphne Powell Actor Jimmy Bennett JJ Powell Actor Stephen Collins Dr. Dayton King Actor Christina Chang Detective Yvonne Cho Guest Star Jason Antoon Mr. Litchfield Guest Star Reggie Lee Dr. Francis Chiles Guest Star Rebecca Mader Victoria Morrow Guest Star Lucy Lawless Helen Burton Guest Star Jonna Walsh Megan Guest Star Luke Kleintank Chris Minor Guest Star Guillermo Díaz Detective Frank Cordero Guest Star Katelyn Tarver Natalie Poston Guest Star Katrina Begin Bailey Browning Guest Star Jean-Luc Bilodeau Bret Martin Guest Star James Earl Kenny Barcly Guest Star Josh Stewart The Watcher Guest Star Jon Harmon Feldman Executive Producer, Producer, Writer Greg Berlanti Executive Producer Morgan Wandell Executive Producer David Semel Executive Producer, Director Zack Estrin Writer Todd Slavkin Writer Kate Barnow Writer Sonny Postiglione Writer Andrew Major Writer Allison Adler Writer Darren Swimmer Writer Marc Guggenheim Writer Paul Edwards Director Elisabeth R. Finch Writer Leigh Dana Jackson Writer Terry McDonough Director Greg Beeman Director