Guest Stars Josh Randall as Captain Sean Beckett Merle Dandridge as Fire Chief Natasha Ross Tracie Thoms as Dr. Diane Lewis Natasha Ward as Deja Duval Nina Millin as Dayna Rutledge Annie Sertich as Peggy Knox Melissa Marty as Michelle Alvarez Meredith Scott Lynn as Hattie Michael Liu as Cory Danny Woodburn as Tobias Co Starring Shane Hartline as John Maddox Shaun Heard as Dan Barnes Zoe Vazquez as Rose Stella Vazquez as Rose Spencer James Hammerstad as Cutler