*Wave the Swallow is a character that appears in the Sonic the Hedgehog series. She is an anthropomorphic swallow who is the technical and mechanical expert of the current generation of Babylon Rogues. She is the daughter of the tech expert of the previous generation of Babylon Rogues, which she takes after, and takes care of her groups' customized Extreme Gears.

Because of her knowledge on Extreme Gear, Wave is brimming with self-confidence and can be a bit of a trash-talker and highly critical of others' work with Extreme Gear. She hates thick-headed or stupid people and she tends to give advice only she can understand. Regardless, Wave is level-headed and serves as the voice of reason in the Babylon Rogues, though she is often mistreated by the other members.

Wave is an anthropomorphic swallow with purple feathers that cover her body and a white patch on her chest. Her hair is styled like a pair of long braids with dark purple tips. On her wrists there are light purple flame-like markings. She has a golden-curved beak, light purple eyelids, blue eyes with two eyelashes on each side of them, and a two-feathered tail.

For attire, she wears a white bandana, white gloves that possess visible lining with gold bracelets and red lining, a white tube top that reveals her midriff and covers her torso, and white-flared pants with dark purple flames at the bottom. She also wears red boots with white accents, silver zippers and gray soles, a white necklace with a red utility gem, and gray sunglasses with gold lenses.

Because of her knowledge, Wave is brimming with self-confidence. She is very arrogant about her expertise at Extreme Gear, certain that no one can match her in this field. She is a super-achiever and holds very high standards for how Extreme Gear should be and never hesitates to dismiss others' Extreme Gear as "junk". She takes great pride in her skills and is passionate about her profession, becoming indignant when someone insults or blames her work for their own failures. She has a keen eye for detail, takes notice of everything, and hates thick-headed and stupid people. Also, she tends to give advice using terminology understandable to only herself and not others. Naturally, this causes tension and frustration between her and others like Jet.

Wave often refuses to admit others' talents with Extreme Gear mechanics due to her dislike of anyone who could rival her. She often holds back on her compliments and will either continue to dismiss or deny that the person has any skill at all to cover up any sense of generous gesture she may hold. In the cases she does give compliments, she will disguise them as insults. It is only in the rarest of cases that Wave gives well-meant compliments.

While generally fun-loving like the rest of the Babylon Rogues, Wave is very level-headed and serves as the voice of reason amongst her group, often lecturing Jet and Storm of their responsibilities. Because of her teammates' unreliability, Wave believes that she has to take charge of the team if anything is to get done. She is very serious on a job, staying dedicated to the task at hand, and insists on no lack of dedication from her companions. When things do not go as planned, however, she tends to get impatient. Also, she can be quite stubborn and obstinate when making a decision.

Wave is usually rude, with a sly attitude and snide sense of humor. Being the most outgoing of the Babylon Rogues, Wave has no problem insulting others and mocking their Extreme Gear. She will also take compliments or conversations from others and twist them around so that she can throw them back at others as a snide comment. Wave also finds amusement in insulting and degrading her opponents' skills during races.

Wave also has a great deal of greedy love for money and treasure, and her primary motive in life is to acquire as much wealth as possible.

Wave is a level-headed figure that is able to ride her Extreme Gear with style. Though she usually has a calm demeanor, she cannot help but get excited over treasure.*