Reincarnated as Michelangelo

Hamato Splinter is the adoptive father and ninjutsu sensei of Leonardo, Raphael, Donatello, and Michelangelo.

Hamato Splinter is a mutant rat with white bushy eyebrows, black whiskers on his muzzle, a pink nose and tail, a nick in each ear, dark brown eyes, short fur, and a thin figure. He has four fingers on each hand and three toes on each foot and white claws. Unlike his other incarnations, this Splinter has gray fur instead of brown fur.

He also has a somewhat disheveled appearance, especially a small notch in each ear, this disheveled appearance can also be seen reflected in his clothing too, which consists of an a torn red-orange kimono with dark brown trim, as if to imply that he has gone through more hardship, or simply to match the tone of the series.

Splinter is a composed and loving father, raising the Turtles as his own sons but not hesitating to scold them when necessary. Despite having spent his life initially as a normal rat, and then living underground as a mutant, he is very wise and insightful. Regularly, Splinter has prove himself able to anticipate how his sons will react and likewise able to read the flow of battle to properly counter his opponent. At the same time, experienced as he is, Splinter has great difficulty using mechanical equipment, being unsure of how to answer a Shell Cell or control the Battle Shell remotely.

Splinter does his best to look out for them and would gladly give his life to protect them. However, Splinter also shows great faith in his sons, believing them to be fully capable ninja and even showing enough confidence in their abilities to allow them to face the deadly Shredder on multiple occasions, although during the majority of their encounters, he is there to support and protect them in any way that he can.

Splinter has a vengeful streak as shown by his determination to avenge Hamato Yoshi's murder. He speaks very highly of Yoshi, even thinking of him as a father figure despite the species differences and the fact that Splinter wasn't fully sapient until after Yoshi's death. He is one of the very few characters who challenges the Ninja Tribunal, whom he partially blames for Yoshi's death.

Splinter is a very honorable person and is therefore disgusted by dishonor and cowardice. He is capable of fighting on par with the Shredder and also shows a great deal of cunning and resourcefulness in combat, such as when he tricked the Shredder into bringing a water tower down on himself. Despite his age, Splinter also shows amazing speed, strength and skill in combat. His simple walking stick is his signature weapon as he believes that in the hands of a true ninjutsu master, any weapon could be deadly.

Leonardo is one of the main protagonists of the 2003 TV series. He is the leader of the Ninja Turtles. He is the most mature and responsible of the four brothers, and takes honor and responsibility as his priority.

Leonardo appears to be a normal, healthy teenage mutant turtle. He is muscular and stocky like his brothers. His skin tone is forest green and he wears a blue ninja bandana.

Leonardo is the leader, whose key attributes consist of honor, sensitivity, patience, and encouragement. He is the most "spiritual" of the four brothers. Despite being a teenager, he acts kind of like a grown-up due to all his seriousness, but can still have fun with his brothers.

Of the brothers, he has the closest bond with Splinter, often going to him for help and attempting to follow his orders to a T (at least when his brothers aren't out causing trouble, forcing him to go along with their antics). While responsible, Leo can still be sucked into trouble by his brothers out of his own curiosity or his sense of duty to keep an eye on them. All three of Leonardo's brothers view him as a pillar of strength.

One of Leonardo's most prominent qualities is his determination to believe the best in people, even potential enemies. This trait can cross over with being naïve.

Leo may be mature, but he sometimes would have a hot temper. He also can have emotional outbursts of rage similar to how Raphael would if he was upset, except more violent.

Donatello is one of the main protagonists of the 2003 Teenage Mutant Ninja Turtles TV series. He is the smartest and most technologically-adept Turtle. His personality is still the traditional technology Turtle, but unlike most other incarnations, he is the most passive and is rarely aggressive. His trademark bō is his primary weapon, but he has used other weapons such as laser guns and those of his brothers.

Donatello is a mutant turtle with olive green skin who wears a purple bandana and brown paddings on his knees, elbows and wrists.

Donatello is the brains of the bunch. Like in the Mirage comics, Donatello has a complex personality. Several episodes concentrate on him, as well as his emotional and intellectual struggles. He is very book smart, a skilled technician, and has a tendency to think things through. He shows a greater interest in science and education than his ninjutsu training.

Donatello will defend his brothers at any cost, and he frequently assists the team in many ways through the technology he develops, mostly vehicles and communication devices. He also can use ninjitsu and his Bo Staff when necessary. Donatello is very prepared for situations especially with his gadgets.

Donatello is the calmest, peaceful and most pacifistic out of all his brothers. He's gentle, very peaceful, and doesn't really lose his temper. Sometimes he can be witty which rarely bothers his brothers, but overall, he is a gentle turtle who is well liked by all of his brothers never engaging in major confrontations with them.

Raphael Splinterson is one of the main protagonists of the 2003 Teenage Mutant Ninja Turtles TV series. He is the strongest of the team who uses his twin sai, other weapons, mastery of Ninjutsu to protect New York City from threats such as the Shredder. On top of being the strongest, he is the most temperamental and hostile, but his deep love for his family is what has him fighting the hardest.

Raphael is represented by the color red, most prominently reflected by his red traditional bandana. His skin tone is a deep emerald green, the darkest of the Turtles. He wears the same brown knee/shoulder pads and belt as his brothers. His weapon of choice is twin sai, which he carries in his belt.

Raphael is a typical brash, street smart, no-nonsense, and headstrong New Yorker with a Brooklyn accent. His personality is similar to that of his original Mirage counterpart—he is aggressive and headstrong. However, he is slightly more sarcastic and moody. Despite being impulsive, he has better control over his anger. When it's too much though, he is still prone to bursts blind rage.

Throughout the series, Raphael is shown to struggle with his temper even though he is shown to be aware of the impact of it. Raphael has the hardest time with trusting enemies in situations due to fear they will harm him and his family let alone again. Raphael's deep love for his family, outweighs his anger.

Raphael's hostility can sometimes cause tension, especially with Michelangelo and sometimes Leonardo. Raphael constantly gets frustrated with Michelangelo's constant taunting and teasing, causing them to clash frequently. Raphael and Leonardo usually somewhat get along, but when they argue.

Raphael is intensely loyal and is often the first to react when any of his friends or family are in danger.

April O'Neil is an ally and is seen as an older sister to the Ninja Turtles. April is a beautifully, redheaded, woman with pale skin, and due to her appearance and name, she may be of Irish descent. As time goes on, she develops a bit of muscular tone to her limbs. Her primary outfit is a purple crop top, baggy khaki pants, a dark belt, and dark blue shoes. Her hair is normally made into a bun in the back.

April is smart, friendly, and intuitive. Despite the weirdness she is thrust into on a daily basis since her attempted assassination by her boss, she has been able to acclimate eventually to where nothing at all seems to be too weird for her.

Upon meeting Casey for the first time, he falls for her, but due to Casey's brutishness, bad temper and low intelligence, the two mostly clashed and fought over stuff. Whenever Casey tried to make a move on April, she would reject him.

Despite Casey's brutishness, ill temper, and low intelligence, she eventually falls for him in a true case of "opposites attract". But it could also be due to his inherent kindness and honesty.

Like other incarnations of the character April was fearful of the Turtles and Splinter at first, then overtime started to warm up and became their ally. She is loyal and reliable to the Turtles, Splinter and Casey.

April gets along with Donatello the best out of the Turtles, as she's the only one who he can talk to about anything scientific.

Casey Jones is a hockey-masked self-titled vigilante who fights crime at night and a close friend of the Ninja Turtles (mainly Raphael) Casey is an adult, well-built man with long black hair. He is usually dressed in a deep red T-shirt and long dark blue sweatpants with white trim. Often, brown gloves are worn on his hands.

Despite being somewhat unintelligent and seemingly incompetent in some things, Casey has shown himself to be a very thoughtful and kindhearted man who would do anything for those he cared about. However his lack of wits is not his only fault, he is also incredibly aggressive, reckless and impulsive. His aggression is noted by Raphael, who said that Casey was as angry as he was.

Ch'rell, known in disguise as Oroku Saki, The Shredder and referred to as the Utrom Shredder, is the main antagonist of the 2003 TV series. He was the main Shredder, as he has the most history with the Turtles and Splinter. He is sometimes called the Utrom Shredder as he is not truly human, but an evil Utrom criminal who uses an Utrom Exoskeleton to pretend to be a human. He created a suit to go on the outside of the exoskeleton that looks like perished & forgotten ancient Japanese warrior, Oroku Saki, stealing his symbol and building his reputation as a Japanese billionaire and warrior of the same name. He created armour very similar to the original Shredder (real Oroku Saki) and stole his alias of The Shredder. He is a notorious intergalactic war criminal, who has adopted numerous aliases. He is the only known blood-red Utrom (as opposed to the species' normal pink appearance), has a purple scar over his left eye and three horn like protrusions on each side and the center of his head.

Ch'rell is an embodiment of the stereotypical megalomaniac: bloodthirsty, insane, selfish, wrathful, sadistic, and relentless. He hates anyone who challenges, impedes, or otherwise wrongs him, holding grudges long after the fact - in some cases, this can even become an almost pathological hatred against them. After Ch'rell had assumed the identity of the Shredder, his megalomania became even stronger, to the point of calling himself the "one true Shredder".