Abby is Sonic's smart sister.
Friends[]
- Sonic the Hedgehog (Adopted Brother)
- Lou the Hedgehog (Adopted Sister)
- Klonoa the Hedgehog (Twin Brother)
- Cici the Hedgehog (Adopted Cousin)
- Miles "Tails" Prower
- Knuckles the Echidna
- Amy Rose
- Shadow the Hedgehog (Secret Crush)
- Lizzy the Hedgehog
- Jur the Hedgehog
- Jane Magenta (Best Friend)
- Toro Bobinsky
- Coop the Chicken
- Lina the Dog (Best Friend)
- Dave the Mouse
- Angie
- Molly
- Tabitha the Cat
- Oliver the Fox
- Charles the Squirrel
- Lewbert the Echidna
- Spencer the Bird
- Larry the Hedgehog
- Lilly the Hedgehog
- Odie the Hedgehog
- Carrie the Rabbit
- Cammie Stewart
- Sammy Nooken
- Rocky the Rat
- Brook Taylor
- Nikki Roberts
- John Gibson
- Silver the Hedgehog (Future Son)
Rivals[]
- Rouge the Bat
- E-123 Omega
- Natalie the Hedgehog
Enemies[]
- Dr. Eggman
- Chaos
- Metal Sonic
- Black Doom
- Solaris
- Bailey the Dark Wizard
- Ritcher
- Arjar
Love Interests[]
- Shadow the Hedgehog (Love Interest, then Enemy, then Friend, then Secret Crush, then First Kissed, then Boyfriend, then Husband)