Characters who appear in Sonic Boom and its related game and their associated tropes.
- Team Sonic and Friendsnote Sonic, Tails, Knuckles, Amy Rose, Sticks.
- Antagonistsnote First appearance in the games (Dr. Eggman, Lyric, Sentinels, Metal Sonic, Shadow); Television-Exclusive (Orbot and Cubot, Badniks, Burn Bot, Obliterator Bot, Froglodytes, the Mega, Dave the Intern, T.W. Barker, Nominatus, Retro and Beta, Morpho)
- Other Charactersnote Appearing in both mediums (Q-N-C, Cliff, Chef Woody, Doc Ginger, Foreman Fred, Old Tucker, MAIA, Salty and Pepper, Mayor Fink, Perci, Hayward, Hokey and Pokey); Television-Exclusive (Buster, Comedy Chimp, Wolf Sidekick, Soar the Eagle, the Gogobas, Lady Walrus, Zooey, Lady Goat, Mike the Ox, Justin Beaver, Mark the Tapir, Og, Ms. Tomatopotamus, Vector the Crocodile)
