Boi

Dime Tribe Knight Boi (ダイム族ナイト ボーイ Daimu Zoku Naito Bōi) is TigerRanger (タイガーレンジャー Taigā Renjā) of the Zyurangers and the "Warrior of Hope."
Boi was a member of the Dime Tribe, one of five tribes that lived in harmony with dinosaurs some 170-million-years ago. The Dime Tribe worshiped the sabretooth tiger. The five tribes later went to war against the evil witch Bandora who sought to bring an end to the age of dinosaurs. Ultimately, the Guardian Beasts stepped in to end the conflict by exiling Bandora and her followers on the planet Nemesis. With their kingdoms in shambles and the dinosaurs facing extinction, Boi joined Yamato Tribe Prince Geki, Sharma Tribe Knight Goushi, Etoffe Tribe Knight Dan, and Lithia Tribe Princess Mei in going into suspended animation only to be revived should Bandora ever return to terrorize the Earth once again. Their resting place was placed in a secret underground lair 2000 km under what is now present-day Tokyo and left in the care of the Mysterious Sage Barza.