Name: Sargeant Silverback (John Tui)
Rank: drill sargeant, Doggie Cruger's friend
Episode: 26, 27 - S.W.A.T. Part 1, Part 2
Information: Commander Doggie Cruger sends the rangers to planet Zentor to help resolve their petty bickering that has been going on all year. Under the command of a tough drill sergeant,and his robotic dog - Sargeant Silverback retrains the rangers in order for them to accept each other and fight better as a team. The rangers graduate from the S.W.A.T. training, and Sargeant Silverback gives them the S.W.A.T. Truck to defend Earth.