Guest Stars Alessandro Juliani as Dr. Emil Hamilton Alaina Huffman as Dinah Lance / Black Canary Michael Shanks as Carter Hall / Hawkman Keri Lynn Pratt as Cat Grant Britt Irvin as Courtney Whitmore / Stargirl Michael Hogan as Slade Wilson Co Starring Anne Marie DeLuise as TV Reporter Lori Ann Triolo as Lt. Trotter Lane Edwards as Agent James Shepard Ivan Wanis-Ruiz as Sergeant Garcia