Joe Mantegna David Rossi Actor Paget Brewster Emily Prentiss Actor A.J. Cook Jennifer Jareau Actor Aisha Tyler Dr. Tara Lewis Actor Kirsten Vangsness Penelope Garcia Actor Adam Rodriguez Luke Alvez Actor Daniel Henney Matt Simmons Actor Candy Clark Sandy Jareau Guest Star Sean Donnellan Wayne Hollis Guest Star Lisa Roumain Marsha Pryor Guest Star Christina Cox Agent Brenda Channing Guest Star Greg Cromer Mayor Rob Tremaine Guest Star Maya Sayre Joan Tremaine Guest Star Jack Erdie Arthur Brodie Guest Star Katrina Nelson Young Woman Guest Star Liam James Ramos Joey Prior Guest Star Lincoln Lambert Aiden Lyson Guest Star Alexis C. Sitek Olivia Woolsey Guest Star Cooper Stutler Timmy Tremaine Guest Star Devin Weaver Katie Linz Guest Star Mark Gordon Executive Producer Erica Messer Executive Producer Breen Frazier Executive Producer Bruce Zimmerman Writer