Maria is one of Roger's co-workers at Fusfeld Motors in "Rough Trade". Roger deemed her the 'slut', causing her to kick him. She threatens to destroy him in the sales contest with a trip to Hawaii as the prize. According to Phillip, she always wins first place. Fed up with her winning streak, Phillip and Roger worked together to outsell her. However, Phillip used Roger to win the prize himself when he puts his name on Roger's sales, stealing his prize.
She also appears in a background cameo in "The Adventures of Twill Ongenbone And His Boy Jabari", watching the graduation ceremony at Georgetown University.
Maria is voiced by Jill Talley.