One of the strongest swordsmen, also known as Puss in Boots. He usually speaks and acts like a human, being fluent in both English and Spanish. However, his character is highly rated for charming traits that real cat owners would recognize, such as his love for milk or jumping on all fours when startled. When truly angry, he makes actual cat sounds and hisses. This is the same for Kitty, who is also a cat. Like a typical cat, he loves catnip. In Shrek, there's even a gag scene where he's caught by guards hiding it in his boots and gets shaken down like a drug possessor.

As an adult, Puss became a classic Spanish swashbuckler and became a wanted man in San Ricardo due to an incident involving Humpty Dumpty. He lives as an outlaw, bounty hunter, and adventurer, seeking adventure and women as he pleases. However, there are scenes where Puss feels guilt, sadness, or longing while living as an outlaw; these emotions stem from the teachings of Imelda, who tried to raise him to be a person of integrity. Thus, even as an outlaw, Puss acts like a Robin Hood figure for the weak, eventually becoming a heroic figure who makes his mother proud.

Although law enforcement holds a grudge against him because of his wanted status, he cannot stand injustice and often steps in to defeat monsters and rob corrupt officials to help the common people without expecting much in return. Consequently, he is still regarded as a hero by the general public. He seems to have his own set of rules, saying things like, "I never rob a church or an orphanage." However, he treats his lives too lightly (having nine lives as a cat). Eventually... the 'Big Bad Wolf,' who feels Puss is mocking him, comes to hunt him down.