Guest Stars Samantha Sloyan as Dr. Penelope Blake Joe Adler as Dr. Isaac Cross Scott Elrod as Major Will Thorpe Kate McNeil as Tess's Mother William R. Moses as Steven Skyler Hart as Michael Cook Co Starring Payton Silver as Dr. A. Knox Joanna Rhambo as Nurse Curtis Walker as Medivac Guy Taylor Blackwell as Kelsey Sue Cremin as Holly Dana Bowman as Nick Paris Perrault as Tess