Commander Abraham Tower is a character that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. He is the top-ranking officer of the Guardian Units of the Nation, and thus, he is in charge of all operations against threats to the United Federation such as those posed by the Eggman Empire, the Black Arms, or Dark Gaia. He is also the direct superior of units like Team Dark and Spider Troupe.