This is the index of Randy Cunningham: 9th Grade Ninja cartoon series. Spoilers are potentially unmarked.
- Main Characters Click to Expand Randall "Randy" Cunningham, Howard Weinerman, and The Ninja Nomicon
- Villains Click to Expand The Sorcerer, Hannibal McFist, Willem Viceroy III, Evil Julian, The Tengu, NomiRandy, The Halloweenja Suit, The Sorceress, Mac Antfee, The Disciplinarian, and Catfish Booray
- Students/Kids Click to Expand Heidi Weinerman, Bucky Hensletter, Bashford "Bash" Johnson, Debbie Kang, Theresa Fowler, Julian, Juggo, "Accordion" David, Stevens, Flute Girl, Morgan, Rachel, Jacques, Ranginald Bagel, and Levander Hart
- Faculty/Adults Click to Expand Principal Irving Slimovitz, Mrs. Marlene Driscoll, Mr. Jerry Driscoll, Coach Green, Ms. Mary Elizabeth Ringwald a.k.a. Tawny, S. Ward Smith, Mort Weinerman, Marci Johnson McFist, Terry McFisy, The First Ninja, Plop Plop, and Ninja of ' 05
