Marcia Gay Harden
Dr. Leanne Rorish (13 eps)
Luis Guzmán
Jesse Salander (13 eps)
Benjamin Hollingsworth
Mario Savetti (13 eps)
Harry M. Ford
Angus Leighton (13 eps)
William Allen Young
Dr. Rollie Guthrie (13 eps)
Emily Alyn Lind
Ariel (13 eps)
Boris Kodjoe
Dr. Will Campbell (13 eps)
Noah Gray-Cabey
Dr. Elliot Dixon (13 eps)
Emily Tyra
Dr. Noa Kean (13 eps)
Moon Bloodgood
Rox Valenzuela (13 eps)
Rob Lowe
Dr. Ethan Willis (13 eps)
Alex Lange
Max Edwards (5 eps)
Taylor Handley
Robert (2 eps)
Jim Titus
Paramedic (2 eps)
Zac Badasci
Dash (uncredited) (1 eps)
Ezana Alem
Dillan (1 eps)
Sigrid Owen
Tina collins (1 eps)
Elizabeth McLaughlin
Lana (1 eps)
Laura Leighton
Sonya Finn (1 eps)