|This character exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Thunderhawk is the father of the first female guardian, Janelle-Li, and the son of Sojourner. While not known for any particular outstanding achievements as a Guardian, Thunderhawk has been a vital part of the Brotherhood team, assisting in dealing with the Overlanders and the issue of Alicia Acorn. Recently, Thunderhawk was tossed into the Twilight Zone by Dr. Finitevus along with the few surviving members of the Brotherhood.
Member of the Brotherhood
During the Great War, Queen Alicia was sent to Angel Island in order to avoid getting caught up in the conflict. However, a group of Overlander attack ships shot down her ship. When the Overlanders went to inspect the crash site, Thunderhawk quickly warned Sabre and Sojourner of their presence. Sabre proceeded to lie to the Overlanders, claiming everyone died in the crash. After they left, Thunderhawk and the others brought Queen Alicia back to Haven and put her in cryo-sleep in order to prevent her death from the injuries she sustained in the crash. Additionally, the three Guardians brought back Elias Acorn, who was only a baby at the time, and raised him.
When the Brotherhood began keeping eyes on their global interests, Thunderhawk was responsible for watching over the continent of Downunda. Following Sonic the Hedgehog's discovery of Crocbot's remains and the latter's schemes of using the Platypus' against the Downunda Freedom Fighters, Thunderhawk was responsible for the cleanup efforts and ensuring life returned to normal. While discussing what happened with the rest of the Brotherhood, Thunderhawk stated that Sonic was "nothing but trouble" and left him with a "lot of cleaning up to do".
When the defenses of Haven were sabotaged by Moritori Rex, who had long been disguised as the guardian Tobor, Thunderhawk was one of the Brotherhood members captured by the Dark Legion. However, the Legion's plan failed and the Brotherhood members got free.
After Dr. Eggman Robotnik freed the water beast Chaos from the Black Emerald, he proceeded to attack Angel Island in order to obtain shards from the Master Emerald to help Chaos evolve. When Knuckles arrived at Haven to find out why Angel Island was now immersed in the water, Thunderhawk, who was at the command center, explained that Hunter's various interferences with Haven had prevented them from restoring their fail-safes in time, resulting in the island being vulnerable to attack. When Remington provided Haven with video footage of Eggman's attack, Thunderhawk stated "The way I see it, we have two choices: one: we work to restore the island the way it was before this disaster, or two: we go after the party responsible for it!". When Knuckles confronted his father about them not agreeing to help Princess Sally Acorn with their war against Eggman when she came to them earlier, Thunderhawk countered both him and Spectre, stating "Based on all previous data, Spectre, our decision was the correct one! if we are dealing with Robotnik, whatever reasons prevented him from taking similar action prior to this are no longer valid!". With that said, Knuckles left to locate the missing pieces of the Master Emerald.
After Knuckles returned the Master Emerald shards and Angel Island began to ascend into the sky once again, Thunderhawk accompanied Knuckles on a ship to the Mysterious Cat Country to locate his father and the Chaotix. As Knuckles left the shuttle, Thunderhawk asked if he wanted to be accompanied, to which Knuckles said he would be fine.
During the Legion's next campaign, Thunderhawk and the rest of the Brotherhood was accompanied by Mathias, where they rallied together and attacked the Dark Legion base at the Grand Conservatory. However, they were soon transported mid battle to a pocket zone when the Dark Legion fired the Quantum Beam at Angel Island via their Battle Cruiser.
The Brotherhood was returned to Mobius later by Chaos Knuckles. Once they were returned to Mobius amongst the wreckage of Haven, Sojourner and Thunderhawk discussed who was likely behind the chain of events. Sojourner originally stated that there were no clues as to the cause, but Thunderhawk quickly corrected him, saying evidence of the Dark Legion where everywhere.
Last Stance and captive
After the Xorda's attack on Mobius and Sonic the Hedgehog's supposed death, Angel Island came under heavy siege by the forces of Dr. Eggman Robotnik and his new allies, the Dingoes under the leadership of Kage Von Stryker. The Brotherhood, including Thunderhawk, spent as long as they could holding off Eggman's forces while the Master Emerald was relocated to prevent it from being captured. The Brotherhood was believed to have died during this battle, but in reality the mad scientist Dr. Finitevus had simply captured the battle-weakened Guardians.
Having been badly weakened from their battle with Eggman's forces, Dr. Finitevus had no problems holding them captive. From there, Finitevus performed numerous studies on each member of the Brotherhood in order to understand their relationship with Chaos energies. Once he felt he learned all he could, Finitevus dumped the Brotherhood and Moritori Rex into the Twilight Zone, leaving them for death.
Thunderhawk is often in agreement with his father Sojourner. When the Brotherhood was discussing the turmoil Mobius was left in following the death of Dr. Robotnik, Thunderhawk agreed with his son in that it was much more difficult to manage the numerous small problems all over Mobius than strictly dealing with just Robotnik or the Dark Legion. When the issue of Knuckles getting together with Julie-Su, a Dark Legionnaire, came up, Thunderhawk stated he thought the relationship would be "interesting".