Fiona Fox

Fiona is one of the few villains from the Archie series. She had broke out from No-Zone jail with Scourge and arrive back to Moebius. When arriving to Mobius, Fiona was resented by everyone, until she reformed from her villainous ways, attempting to join Sonic's team. She was remained as member of the group by Sonic, so much for their dismay. But, they eventually made peace with her after hearing about the incident. She is a partner and girlfriend of Scourge the Hedgehog.

Unlike her past counterpart, Fiona's personality has changed, "a traitor turned vulnerable", befriending her former enemies. She made her debut return on Sonic Party Adventure, where she was forgiven by Team Sonic.

Personality
Fiona displays as good-natured and affectionate, who cares about the others and Scourge. She is spunky, smart, clever and eager making her the strongest of the group. She is very vulnerable, which makes her reform from her evil ways and has regained her good side. Also, she was forgiven by the gang about the past, which makes her being part of Team Sonic.

Abilities and Talents
Fiona is both a swift and agile fighter due to her time as a former bounty hunter and Freedom Fighter. In battle, she has managed to hold her own against different opponents in hand-to-hand combat and many forms of martial arts. As a new member, she was also both a proficient technician and medic. She also showed some tactical skills.

Friends
Fiona has no friends to rely on, because she has chosen the dark side due to her past when she was abandoned. This makes her being resented by the gang, even she resent herself for her own actions, that she refer to betray the others for Scourge. She discards her old villainess ways and becomes friends with Sonic and the others and was currently forgiven by everyone.

Rivals
Fiona may have rivalry ties with anyone. She hold some sort of rivalry and compete fiercely against Rouge in Girls Night Out. It has shown that Fiona defend the girls when Rouge tries to outsmart them by stealing some of value gifts from the guys.

Romance
Fiona is a partner of Scourge the Hedgehog. After the pair were forgiven by Sonic and Tails, they're currently dating. Also, they're always seen together, when Fiona was helping Scourge.