Mendez Ten (or Mendez 10) was a mutant from New York who lost a power struggle with Lord Kolp and fled to 'Primacy' to start a new life.
Possibly, Mendez Ten was a biological descendant of the first Mendez who occupied the West Coast Forbidden Zone in the late 20th/early 21st century. It could also be guessed that Mendez' genealogical line was restored to power, and extended into the 40th century, culminating with the Dynasty's final inheritor, Mendez XXVI, but whether or not 'Mendez' was the mutant's true birth name, or merely an honorarium is unknown.
- Mendez Ten is exclusive to the continuity of the Planet of the Apes comic books published by Malibu Graphics, and their mythos.
- A bust bearing the name 'Mendez X' can be seen in the corridor leading to the interrogation room in the mutant city in Beneath the Planet of the Apes.