<Li> Chandra Wilson as Miranda Bailey: Chief of Surgery at Grey Sloan Memorial Hospital and Ben Warren's wife . </Li> <Li> Marla Gibbs as Edith, a feisty retirement home retiree who sets up Travis with her grandson, Grant </Li> <Li> Brett Tucker as Fire Chief Lucas Ripley, the Fire Chief for Seattle Fire Department </Li> <Li> Brenda Song as JJ, a music reviewer who Dean saves from a fire and later begins to date </Li>

Who plays the fire chief of station 19