Satoru Akashi (明石 暁 Akashi Satoru), nicknamed "Chief" (チーフ Chīfu) by his fellow Boukengers, is the Passionate Adventurer Bouken Red (熱き冒険者ボウケンレッド Atsuki Bōkensha Bōken Reddo) of the Boukengers. His mecha include GoGo Dump, GoGo Jet, and GoGo Commander. His Power Rangers: Operation Overdrive counterpart is Mack Hartford, the Red Overdrive Ranger.