Guest Stars Caitlin Thompson as Madison Alexandra Breckenridge as Sophie Jennifer Morrison as Cassidy Sharp Gerald McRaney as Dr. Nathan "Dr. K" Katowski Blake Stadnik as Jack Damon Auden Thornton as Lucy Preston Oliver as Kevin's Son Adelaide Kane as Hailey Josh Hamilton as Eli Mason Adan Rocha as Zach Co Starring Melody Butiu as Barbara Carrie Gibson as Stable Hand Jasper Cate McPherson as Daughter Glory Joy Rose as Sadie