Sarutobi Sasuke

Wielder of the Golden Lightning-Lobster morpher, he's as fast on his feet as he is to jump into an electrifying conversation.
Sasuke had always dreamed of becoming the next Hattori Hanzo. He trained with the Iga Clan, a ninja village near Sanada, in hopes of inheriting the Purple Poison-Frog spirit from the current Hattori Hanzo. During his training, he often was near the Sanada Clan where he met his best friend Sanada Yukimura, and they often trained together and Yukimura shared the tales he heard about the Shinkgengers. However, despite Sasuke's years of training and his passion, on the day of the ceremony in which the morpher was to be given to him, the spirit of the Purple Poison-Frog rejected him. The Iga Clan believed so strongly that Sasuke was the most deserving of the title of Hanzo (and of a place with the Shinkengers) that they gathered 300 of their Shinto priests and used their stored power to create the Golden Lightning-Lobster Morpher for him. He inarguably trains the most of all the Shinkengers, making sure not to waste the power bestowed upon him.
While he was the only Shinkenger who made it out of Honnoji primarily unscathed, the loss of his childhood best friend Yukimura has broken Sasuke.