The Jackal Squad, also known as Squad Jackal (チームジャッカル,Chīmujakkaru?, lit. "Team Jackal"), is a group that appears in the Sonic the Hedgehog series. It was a dangerous group of thieves and mercenaries led by Infinite.
Led by the Infinite, the Jackal Squad would become some of the best mercenaries around.
One day, the group attacked Dr. Eggman's base so they could raid the facility and fetch a hefty bounty for the Eggman technology inside. Though the squad got past the first wave of Badniks, Eggman soon summoned an army of Egg Pawnreplicas that overwhelmed them. Meanwhile, Infinite was offered to become the leader of the Eggman Army by Eggman, who had seen the captain's true nature after he came into contact with the Phantom Ruby. Though the Jackal Squad members were against this alliance, Infinite gladly took Eggman's offer.
The Jackal Squad was eventually assigned with defending Eggman's Facility in Mystic Jungle. Most of the members, however, were completely annihilated by Shadow the Hedgehog, who had come to destroy the facility. The only known survivor of the Jackal Squad was their leader, Infinite, who tried exacting revenge on Shadow, only to be dealt a humiliating defeat. Infuriated by his own weakness, the captain assumed a new identity and fused with the finalized Phantom Ruby prototype in order to become stronger.
The only member of Jackal Squad to have dialogue besides their leader is an unnamed character wearing a bandanna who attempts to dissuade their leader from aligning with Eggman.
According to NibrocRock, Adam Bryce Thomas approved the names Uno, Deux, Quatre, and Trois when he created 3D renders of the Jackal Squad members.
↑ 1.01.1Sonic Team (November 7, 2017). Sonic Forces (Episode Shadow). Nintendo Switch. Area/Level: Eggman's Facility. "Dr. Eggman: Hey, you! I know you can hear me! You're the captain of Squad Jackal, aren't you?! Your squad was useless! Go clean up their mess already!"
↑Sonic Team (November 7, 2017). Sonic Forces (Episode Shadow). Nintendo Switch. Area/Level: Eggman's Facility. "Dr. Eggman: Rrrrrgh! I went to great pains to get the best mercenaries around and he STILL totally wrecked the Defense Squad! SHADDDOOWWRRRGH!"
↑Sonic Team (November 7, 2017). Sonic Forces (Episode Shadow). Nintendo Switch. Area/Level: Eggman's Facility. "Dr. Eggman: We've got an intruder! Shadow has entered the facility! Defense Squad Jackal has already been completely annihilated! All available troops, intercept that blasted hedgehog by any means necessary!"
↑Sonic Team (November 7, 2017). Sonic Forces (Episode Shadow). Nintendo Switch. Area/Level: Eggman's Facility. "Infinite: That day, I gave up my own unsightly face. And I let go of the old me, the one that was so weak, so that I could become stronger. And then, at last... I obtained the power. The power to make all yield to my will. I... was... REBORN!"