Question: who guest starred on chicago med tonight?
Answer: Nick Gehlfuss as Dr. Will Halstead, Supervising Attending Emergency Physician., Yaya DaCosta as Emergency Department Nurse April Sexton., Torrey DeVitto as Dr. ... , Colin Donnell as Dr. ... , Brian Tee as LCDR Dr. ... , Marlyne Barrett as Maggie Lockwood, RN, ED Charge Nurse., Norma Kuhling as Dr. ... , S.