Guest Stars Randy Flagler as Firefighter Harold Capp Katelynn Shennett as Kylie Estevez Tim Hopper as Captain Tom Van Meter LaRoyce Hawkins as Kevin Atwater Andy Allo as Lieutenant Wendy Seager Dominic Rains as Dr. Crockett Marcel Marceline Hugot as Sister Montclair Dennis William Grimes as Father Anthony Ahmad Nicholas Ferguson as Mosiah Adler Co Starring Anthony Ferraris as Squad 3 Driver Tony Ferraris Caleb Smith as Julian Daniel Vaughn Manasia as Maintenance Man / Louis Tamara White as Administrative Assistant Aaron Mi'Kael Reaves as Alistair Fabian Guerrero as ND Truck Floater Steffen Diem Garcia as Middle-Aged Man Franchesca Fojas as Parishioner Megan Corse as Lt. Cromwell Carolyn Hu Bradbury voices Female Caller Taj McCord as Lt. Acosta Mark D. Hines as Shadowy Figure