Family: mother-Pilar Lopez-Fitzgerald; father-Martin Lopez Fitzgerald (Believed to be dead, but he disappeared under suspicious circumstances. Luis is convinced that the Cranes [Martin's former employer]are responsible, and has vowed to find the truth); siblings- 2 sisters=Theresa and Paloma (who lives out of town with family); 2 brothers= Miguel and Antonio (who disappeared just after Martin)
Occupation: After being offered acceptance at Ivy League schools, Luis joined the Police Force to help support his family.
Romantic History: Was with Beth Wallace, his high school sweetheart until he fell in love with Sheridan.
Favorite Dessert: Ice cream with chocolate sprinkles.
Biggest Regret: Not marrying Sheridan when he had the chance.
What he hates: Everything Crane...that is, everything but Sheridan.
Best Qualities: Extremely loyal, loving, and hardworking.
Worst Qualities: His extreme loyalty coupled with his extreme temper can prove dangerous if those he loves are hurt.
Personal Motto: Do unto others as you would have done unto you.