Ninja Turtles! [Portal??..]

Leonardo is the leader of the Ninja Turtles, but this is not always easy: his brothers reproach him for trying to impose his opinions.
Personality. Leonardo is, like Splinter, very serious about his responsibilities. He is somewhat arrogant and perfectionist, however he cares a lot about taking care of his brothers. He spends his free time mainly training and meditating; He possesses a strong sense of honor.

Donatello is a member of the Ninja Turtles, along with Leonardo, Michelangelo and Raphael. Along with his siblings, he was raised and trained by his father Splinter, and resides in the sewers of New York City. He is the most intelligent and technologically adept of the four turtle brothers.

Rafael is characterized by being the most impulsive and aggressive turtle of the quartet; He is easily overcome by anger and shows a lot of cruelty and aggressiveness when fighting. On one occasion he even almost killed Michelangelo in training. He is a loner by nature and hates being always hidden from the rest of the world, which causes quite a few fights between his brothers, especially with Leonardo.

He generally prefers to work alone than with his siblings; He only manages to get along with Casey Jones since he never agrees with the group's decisions, especially Leonardo's.

Mikey is constantly presented as the youngest of the four Ninja Turtles. Optimistic and good-natured, "Mikey" (an affectionate nickname often used by his brothers) prefers to spend his time enjoying his life, but often becomes serious if the situation requires it. While his brothers struggle with the implications of his mutation and his place in the world, Michelangelo tends to watch TV, skate along the underground sewers, read comics, and constantly eat copious amounts of pizza. His innocent and childlike personality has shown that he is not only the youngest of his siblings in terms of age but also in maturity, which he demonstrates throughout his on-screen appearances, using phrases such as KawaBonga , Boo-Yah

Splinter (also known as Master Splinter or Master Splinter in some Spanish translations) is a fictional character from the Ninja Turtles comics and all related media.[2][3] He is an anthropomorphic mutant rat and the Turtles' martial arts and ninjutsu instructor, as well as his adoptive father. Originally depicted as the pet rat of martial artist Hamato Yoshi (Japanese: 濱戸義), in later works he is sometimes depicted as Yoshi himself, mutated or reincarnated. The character was originally a parody of the Marvel Comics character, Stick.