Guest Stars Michelle Borth as Catherine Rollins Al Harrington as Mamo Kahike Brian Goodman as Commander Sam Hale Agnes Bruckner as Tanya Joel David Moore as Sheldon Tunney JoJo as Courtney Russell Co Starring Taylor Wily as Kamekona Dennis Chun as Sergeant Duke Lukela Teilor Grubbs as Grace Williams Melissa Puana-Martin as Governor's Assistant John Sullivan as Dr. Norman Russell Tamayo Perry as Harrison Spike Dunphy