Weaver

Weaver is a Villain in Generator Rex, as well as a ex-employee of Providence, and former business partner of Van Kleiss

Frostbite
In his Debut episode Weaver is the head of the Providence base Paradise. It's eventually revealed that he and his crew were tratiors that were selling Reactivated nanites to Van Kleiss. When the Pack (Biowulf and Skalamander) Showed up looking to collect the Merchandise, at the same time Rex showed up to offload his nanites Weaver Panicked he locked up Bobo Haha, Agent Six, and Dr. Holiday. When He tried to bluff his way out by threatening to release the active Nanites he inadvertantly released and absorbed the single largest concentration of active Nanites since the Event that Released them into the Atmosphere transforming him into a massive E.V.O. When Rex tried to cure him he was knocked out by the overload and Weaver was knocked into a massive crevase.

Basic
Weaver appeared again in Basic where it's revealed that he was brought to the Providence boot camp, with the use of a small fortune and army, to be used as a punching bag by the recruits, When the E.V.O.'s were accidentally released he was the first to be dealt with but his massive form Provided an escape route for the rest of the E.V.O.'s.