Frankie Muniz’s parents are Francisco James Muniz III and Denise Muniz. Frankie Muniz’s father Francisco James Muniz III is a restaurateur by profession.

Frankie Muniz’s mother Denise Muniz is a nurse by profession. Muniz’s mother is half Irish and half Italian, while his father is Puerto Rican and of Spanish descent from Asturias. His parents later divorced and he was raised by his mother in Burbank, California.

Francisco Muniz IV was born on December 5, 1985, in Wood-Ridge, New Jersey, United States of America. When he was 8 years old, Muniz was discovered at a talent show in Raleigh, North Carolina where he played Tiny Tim in a local production of A Christmas Carol.

Frankie Muniz made his film debut in the made-for-television movie To Dance with Olivia (1997). Muniz made a guest appearance in an episode of the CBS crime drama Criminal Minds in late 2007.

Frankie Muniz is known for his film roles in the films Deuces Wild (2002), Big Fat Liar (2002), Agent Cody Banks (2003), and Racing Stripes (2005).