Guillermo Díaz is an American actor. He is known for films Half Baked (1998), 200 Cigarettes (1999) and Stonewall (1995). He is best known for his role as Diego "Huck" Muñoz in the drama series Scandal. Díaz has made guest appearances on Chappelle's Show, Law & Order, Weeds, ER, Broad City, and Girls.

Half Baked is a 1998 American stoner comedy film starring Dave Chappelle, Jim Breuer, Harland Williams, and Guillermo Díaz. The film was directed by Tamra Davis, co-written by Chappelle and Neal Brennan and produced by Robert Simonds. The film received negative reviews but has since become a cult film.