Marco Diaz

Marco Ubaldo Diaz is the deuteragonist of Star vs. the Forces of Evil. He is the son of Rafael and Angie Diaz, as well as Star Butterfly's best friend on Earth. Marco is kind, responsible, very organized, and supportive of others. He has a reputation at his school for being the "safe kid" due to avoiding danger and being cautious, though he insists that he is a "misunderstood bad boy" and lives for danger. He prefers keeping his possessions neatly organized. Marco is smart, gets good grades in his math and psychology classes, and figures out how to find a replacement for Star's wand charger using the metric system. Because he likes it when things go his way, he can become unstable when they don't, like when he snaps at Star for ruining his room and insanely trying to live in front of Stop & Slurp. Although he isn't used to the kind of craziness that Star brings, he admits that he would like a little danger in his life and finds fun in fighting monsters with karate. He often struggles with self-confidence, afraid of being ridiculed by others, and can become nervous easily. He has many insecurities and emotional hang-ups. He has an occasional temper and can get frustrated and/or annoyed with others, such as with Star when she intrudes upon his life, or recklessly drags him into overly dangerous situations. However, he soon makes amends with those who cause him grief, like thanking Pony Head for saving him. He cares deeply for those he is close to, attempting to save Ferguson from being kidnapped and trying to cheer up Star whenever she is feeling upset. Marco also has an urge to occasionally protect Star and keep her safe.