Trivia: Sonic Heroes
- Real-Life Relative: Subverted in English with the Corkery family: son William voices Tails, while his father Bill and sister Emily respectively voice Chaotix members Espio and Charmy.
- Talking to Himself: Sonic and Metal Sonic are both voiced by Ryan Drummond and Junichi Kanemaru for English and Japanese, respectively.
- What Could Have Been: Sonic Team originally planned to release this game for GameCube and Xbox using a proprietary engine; however, Sony stepped in and threatened that if they didn't port the game to PlayStation 2, then Sega could never release a game on a Sony-brand console again. With Sony absolutely dominating the market at the time, this was not a threat you could ignore, so Sega had to try and rebuild the game using the extremely portable Render Ware engine. Unfortunately, the developers' inexperience with Render Ware and rush to rebuild the game led to a Porting Disaster on the PS2 and the game's unpolished state, including sloppy controls and bad camera, on all platforms.