Comedian Louis C.K.’s first language is Spanish and has dual citizenship in Mexico and the U.S.

Louis is the star of FX’s comedy series Louie. He writes, directs, and edits for the series. He’s an award winning stand-up comedian actually.

His grandma was Mexican and his grandpa was a Hungarian Jew who migrated to Mexico and met her. His father was born in Mexico and met his mother at Harvard. Louis was born in Washington D.C. but actually grew up in Mexico City until he was seven. His first language was Spanish and still remains a Mexican citizen. He frequently jokes about how people assume he's a White American and the funny situations he finds himself in because of this.

(Source)