The Grizz is a character and boss from Sly Cooper: Thieves in Time. He is the third boss in the game, which the player fights in the Clan of the Cave Raccoon episode.
The Grizz was an artist on the street, who mainly did graffiti. Suddenly, he was plucked from the streets, with his "art" being showcased in art exhibits. His style was considered "Paleo-graffiti" and he enjoyed a celebrity status for a short time, until people started losing interest in his art and he was tossed back onto the streets. After this, he turned to a life of crime, stealing works of art.
He was hired by Le Paradox to take out Caveman "Bob" Cooper, which was the first Cooper in existence. While he was in the prehistoric era, he stole all of the pterodactyl eggs and used them for paint. He painted and sculpted in the prehistoric era, then went in the present and dug them up, passing them off as authentic caveman art.
During the boss battle with him, he revealed that he never wanted to be a criminal, instead saying that he always wanted to be an ice skater. He was eventually defeated in battle by Murray and put in jail, where he became a rapper and painting portraits of his fellow inmates.