Dr. Julien
Dr. Julien , also known as the Tinkerer , was an inventor who created several impressive robots, including Echo Zane , the Falcon , the Juggernaut , Tai-D , and most notably, his son Zane , who is also the Elemental Master of Ice and the first Nindroid . Julien took care of Zane in the years following his creation, before erasing his memory (to prevent Zane's memory of him passing away) shortly before passing away. However, Samukai resurrected Julien, using him to build vehicles for the Skulkin army. For much of his restored life, Julien was imprisoned inside a lonely lighthouse , which was guarded by a colossal sea creature - the Leviathan . . Shortly before the Final Battle , the ninja journeyed to the lighthouse prison, where Zane reunited with his father. With the ninja's help, Julien escaped the lighthouse due to Zane freeing the Leviathan, allowing it to escape as well. Julien would go on to create several vehicles for the ninja, including the Earth Driller and Fire Mech , all while bonding with his son. Unfortunately, Julien had trouble keeping up with the ninja and stayed behind when they went to the edge of the Dark Island to combat the Overlord . Aspiring to make himself useful, Julien flew the Bounty to the scene of the battle, using the ship to block a missile that would've harmed Lloyd , Wu , and Misako . After leaving the Dark Island and returning to Ninjago City