Guest Stars Ronald William Lawrence as Luke Lily Rabe as Sarah Cullen Gonzalo Menendez as U.S. Marshall Patrick Gonzalez Gregg Daniel as Parks and Recreation guy Laura Cerón as Caroline Bug Hall as Nick, Sarah's boyfriend Chad Todhunter as Trevor Dunker Olivia DeLaurentis as Young Rhetta Miguel Nájera as Tribal Chief of Police Silvia McClure as Melissa Cullen Jessi Mechler as Young Caroline Julianna Keller as Young Grace