Special Guest Stars Josie Bissett as A.J. Foster Guest Stars Andrea Brooks as Dr. Faith Carter Ben Rosenbaum as Mike Hickam Hrothgar Mathews as Ned Yost Ava Grace Cooper as Opal Weise Gracyn Shinyei as Emily Montgomery Jaiven Natt as Robert Wolf Paul Greene as Dr. Carson Shepherd Carter Ryan Evancic as Cody Stanton Kadence Kendall Roach as Anna Hayford Imogen Tear as Hattie Ferguson Callum Seagram Airlie as Harper Tucker Milo Shandel as Mr. Jenkins Jill Teed as Greta Preston Shaughnessy Redden as Joshua Baxter Sarah Grey as Rhonda Sean Poague as Duncan Preston Maja Miljkovic as Judith Preston Benjamin Goas as Elliott Preston