Guest Stars Nicholas Campbell as Grandpa Gordon Cooper Jeananne Goossen as Sabina Andy McQueen as Det. Malik Abed Alli Chung as Detective Taylor Kim Nigel Bennett as Chief Coroner Michael Healey as Dr. Ian Peterson Grace Lynn Kung as Greer Rick Roberts as Gerald Henry Jones Genelle Williams as Camilla Brent Christopher Jacot as Glen King Co Starring Kiley May as River Baitz Leon Aureus as Mario Jamie Thomas King as Agent Madden Barrington Bignall as Homeless Man Juan Carlos Velis as Spencer Brinks