Guest Stars Joanna Cassidy as Joan Hunt Luke Perry as Dr. Charlie Stafford Marisa Ramirez as Officer Riley Dunn Sharon Lawrence as Julia Stone Craig Bierko as Dr. Derrick Malcolm Hannah Leigh Dworkin as Darby Stone Chase Kim as Officer Hawley Jude Ciccolella as Detective Mo Childs Co Starring Allisyn Ashley Arm as Celeste Betsy Zajko as Nurse Betsy Patrick Quinlan as Orderly One Karthik Srinivasan as CSU Tech Pamela Chan as Pixie Girl
