Mario Lopez Jr. is an American actor, television host, and producer, best known for his role as A.C. Slater on the popular television series Saved by the Bell. Born on October 10, 1973, in San Diego, California, he began his career in entertainment at a young age and has since appeared in various films and TV shows. In addition to acting, Lopez is a prominent television personality, hosting shows like Extra and Access Hollywood. He has also participated in reality television, including Dancing with the Stars. Beyond his entertainment career, he is known for his fitness advocacy and has authored several books on health and wellness.