The Kid from "Up" Is Neither Asian Nor Mexican—He's American

Russell, the Wilderness Explorer who befriends Carl Fredricksen in Pixar's Up (2009), is an American child.

Character Details

• Voice actor: Jordan Nagai (Japanese-American, born in Los Angeles).
• Design inspiration: Pixar artists modeled Russell on a Korean-American boy (son of a Pixar employee), but the character's ethnicity is never specified in the film.
• Cultural cues: He wears a Boy Scouts-style uniform, lives in a generic US suburb, speaks American English, and his badge quests (e.g., "Assisting the Elderly") reflect US scouting.

So while the inspiration was Asian-American, Russell himself is simply a kid from the United States—no specific ethnicity stated.