Sol (on left)
Sol is a Blue Sentient and Sage's mentor. His Red Sentient twin is Kytren, the scout of the Red Sentient 5. Therefore, they share a weak telepathic link, similar to Krytus and Sage. His vehicle is a Blue Sentient Vylirex. He was the last original member of the Council of Five. He was imprisoned in the Red Sentient Interrogation Center by Krytus who sabotaged his hibernation systems. This caused him to be unable to recharge when Battle Force 5 found and revived him. He sacrificed his life to destroy his brother's fake respawn chamber. He left behind his Blue Hadron Allotrope at The Hub, which means that theoretically someday he can be regenerated.