|This character exists primarily or exclusively within the Post-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Madonna Garnet is a character that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. She is a human agent of G.U.N.'s C.L.I.P. Division, charged with conducting interrogations.
Following the hubbub on Angel Island, one of Madonna's assignments involved interviewing Dr. Julian Snively regarding his history with G.U.N. on the orders of Abraham Tower. After listening to his account regarding his previous history with Dr. Eggman, Walter Naugus, the Kingdom of Acorn, and Angel Island, she found herself in the unusual position of being unable to tell whether or not he was lying about anything.
- Madonna is based on a scrapped character created for the original Sonic the Hedgehog game from 1991. She was intended as a love interest for Sonic, but was cut from the game for fear it would be too "Japanese" for children and that they'd get inappropriate ideas while playing.
- Madonna's surname is similar to that of Mary Garnet, a fictional character mentioned in the Sonic the Hedgehog Technical Files, which served as a origin story for the conceptualization of Sonic. The fact that her surname is that of a gemstone coupled with her status as a G.U.N. agent also makes her similar to Topaz from the Sonic X anime series and its comic series.
- Madonna's introduction into the comics was first hinted by head writer Ian Flynn on Twitter, though he noted it was "not in any way [we'd] expect."