Mario

Appearance
Mario is a short, chubby Plummer/Hero. He's trustworthy to his friends and family and whenever the princess needs help, Mario is on his way!

Luigi
Mario's green-loving brother, Luigi, is always on Mario's side, whether the princess is kidnapped, Bowser is up to no good, or just if Mario needs his help.

Princess Peach
Ah, the Princess. Did you know that she is Mario's girlfriend? Mario will help Princess Peach whenever she needs it.

Blue Toad
Mario's little Mushroom friend, he's never alone. Mario always hands Blue Toad a Power-Up when it is needed, like a Cat Suit, a Fire Flower, a Tanooki Leaf, you name it.

Bowser
Mario can't stand this Koopa. He always stops him whenever he kidnaps Peach, which Bowser always does. Bowser, when will you learn?

Trivia

 * Mario's full name is Mario E. Armando, as seen in "Last Name".
 * That means that is also Luigi's last name.
 * Mario's girlfriend is Princess Peach.
 * Mario has two sons named Peter and Paul, as seen in "Cake in the Oven".