Mario López is known for his role as Albert Clifford "A.C." Slater on the NBC TV sitcom "Saved by the Bell (1989-1993)", "Saved by the Bell: The College Years (1993-1994)", and in the movies "Saved by the Bell: Hawaiian Style (1992)" and "Saved by the Bell: Wedding in Las Vegas (1994)".
He reprised this role (1995-1996) on the spin-off "Saved by the Bell: The New Class (1993-2000)".

He played Bobby Cruz (1999-2000) on the USA Network TV show "Pacific Blue (1996-2000)".

Some other TV shows he appeared on are "Simon & Simon", "a.k.a. Pablo", "Kids Incorporated", "The Golden Girls", "Union Square", "USA High", "Resurrection Blvd.", "Cover Me: Based on the True Life of an FBI Family", "Popular", "Eve", "The Bad Girl's Guide", "Mind of Mencia", "The Bold and the Beautiful", "George Lopez", "Nip/Tuck", "Nashville", "Still the King", "This Is Us", "NCIS: New Orleans" and "General Hospital".

He appeared in movies like "Kids Incorporated: Rock in the New Year (1986)", "The Last Fling (1987)", "Colors (1988)", "Who Shrunk Saturday Morning? (1989)", "Fever Lake (1996)", "The Golden Condor (1996), "Depraved (1996)", "Breaking the Surface: The Greg Louganis Story (1997)", "Killing Mr. Griffin (1997)", "The Journey: Absolution (1997)", "Eastside (1999)", "Big Brother Trouble (2000)", "A Crack in the Floor (2001)", "Outta Time (2002)", "King Rikki (2002)", "Pauly Shore Is Dead (2003)", "Holiday in Handcuffs (2007)", "Husband for Hire (2008)", "Get Him to the Greek (2010)", "Honey 2 (2011)", "The Stream (2013)", "Hits (2014)", "Grease Live! (2016)", "Popstar: Never Stop Never Stopping (2016)" and "Flock of dudes (2016)".

Happy Birthday!