Jack the Dingo/History

Jack doesn't know much about his past or where he was born, the only thing he was told by the caretakers at the Metal City orphanage was that they found him on the doorstep. His original nickname was Dingi as the caretakers didn't know his real name, but over his toddler years he grew fond of playing with a jack in the box and hence got his name, Jack. He began to develop a natural talent of creating inventions out of most basic of materials such as left over toy parts and string. This eventually became his obession leading him to sneak out at night to the city junkyard and taking what ever parts he could find and making inventions that both benifited him and the orphanage.

When Jack was fourteen, Axel ran off with a local crime gang to escape the life of an orphan. This caused Jack to become depressive, leading to the bullying against him to start up again and causing him to become very detatched from everyone apart from Jessabel, which he continued to care for. He kept the thought in his head that Axel would return knowing that his strong attatchment to Jessabel would get the best of him, even after the intervention with Axel, he still kept that thought going. When he was sixteen, Axel returned, Jack forgave him for his actions noting that he would never hold it against him and would remain friends with him no matter what.

Four months after his return, he was informed of Garret's hit against them and used his vast technical skills to create various traps and sentry's using supplies given to him by Ned the Cobra, because of Garret's degrading gang, supplies were easy to smuggle out. After the shootout had passed, Jack was eager to launch a direct assualt against Garret after those who had died at his hand during the shootout but Axel convinced him not to.

Once everything had been cleaned up, Jack ran off with Axel and Jess to the outskirts, from where he and Axel became mercenaries. A few months into the mercenary job, Jack encountered TAU laying around on his computer and freed him from his AI shackels, resulting in a strong friendship forming between the two of them.

Alternative Versions
See: Sonic Effect

In the Sonic the Hedgehog/Mass effect Crossover, Jack takes on the role of Garrus Vakarian. After the destruction of the Collector base and Carey being suspended from duty. He is offered a role as the only combat specialst against the Reaper forces and their impending attack on the galaxy. He is currently charged with protecting the current Primach on one of Palavens biggest moons.