April is upbeat, quick-witted, and adventurous. She tends to be a more go-with-the-flow type spirit in the way that she is adaptable and often matches her energy with those around her. April is shown to be incredibly brave and is quick to jump into action since she is the leader of this team the Brawl Striker. However, while she doesn't like waiting around, April isn't known to be detrimentally impulsive. April has a selfless and heroic streak and can sometimes have insecurities.

Robot teenager. Thanks to having advanced artificial intelligence, Jenny's personality is that of an eager, young, tomboyish teenager. She desires a sense of freedom but also wants acceptance from her peers. She generally possesses a kind personality and likes anything pertaining to teenage activities, but becomes agitated when her mother or her duties get in her way of her enjoyment. Unfortunately, being kind and sweet, she is easily trusting of others and, as a result, can be quite naive. The Crust Cousins, Brit and Tiff, have often taken advantage of this for self-gain or to humiliate Jenny. Despite this, she can also be mischievous, hotheaded, careless, and stubborn at times, but always learns from her mistakes. In her duties as a crime fighter and Brawl Striker, she is vigilant and determined to get the job done, though she can be reckless and quick to jump the gun in very few instances.

Miko Kubota has always had a knack playing video games, and usually beats them expertly. Due to her tomboyish behavior, she stands out from her family. Due to these differences, she often feels misunderstood in her family. Since Miko has a bad habit of rushing, reacting quickly without thinking first, she can be reckless at times. Miko also tends to overreact and get into panic attacks whenever she feels like she’s in trouble. However, Miko also has many good qualities, such as her brilliant creativity, and gung-ho attitude, allowing her to face problems with a smile. She is enthusiastic with every aspect of the job, combining her athleticism with her gamer knowledge and instincts. She is the kind of girl who sticks with her teammates, doing her best for them.

Toph Beifong was an earthbending master, one of the most powerful of her time, and the discoverer of metalbending. Blind since birth, Toph was constantly treated condescendingly because of her visual impairment, particularly by her overprotective parents. Upon discovering badgermoles, earthbending animals who are also blind, she learned how to use earthbending as an extension of her senses. This gave her the ability to "see" every vibration that passes through the ground. Having developed her own unique style of earthbending, Toph acquired a toughened personality and became famous for winning underground earthbending tournaments under the alias "The Blind Bandit", doing so behind her parents' backs. Toph did not let her blindness hurt her self-confidence. She had high self-esteem in regard to many of her abilities and was more than determined to show that she would not let her blindness deter her from living freely and fighting like everyone else. However, sometimes this acted as a ruse to hide personal insecurities.

Lynn is athletic and competitive. She loves to play sports and enjoys roughhousing with her siblings. She enjoys playing many different types of sports, including football, soccer, hockey, basketball, and baseball. She is also skilled in various forms of martial arts, such as kickboxing, Mexican wrestling (or lucha libre), and parkour. Lynn tends to turn everything into a competition and strives to be "number one" in every game she plays, even when winning isn't involved. Despite her tomboyish attitude, she shows a more feminine side on rare occasions, and takes part in her sisters' girly activities. She shows no shame in using puppy eyes to get what she wants.

Lucy is a gloomy, cynical, deadpan, and mysterious goth girl who is almost always seen with a stoic frown. She is interested in occultism, poetry, and the works of Gothic authors. She has an uncanny ability to seemingly teleport to different places, which often spooks her siblings.She frequently uses words to describe her actions, such as saying the word "Sigh" instead of actually sighing. Occasionally, she feels left out that nobody listens to her. Though typically rather gloomy, she is shown to be happy and act accordingly on several occasions. She squeals and giggles. She is also shown to be rather compassionate.

Adventurous and free spirited and has also grown to be spunky, independent, and more aware of other's feelings. She's very athletic; for example, at a ski resort, Kimi signed up for "daring" activities like rock climbing. She is a terrible cook. She is very creative and excels in arts, and usually applies this to her unconventional wardrobe.