Gladiator Ghost

Gladiator Ghosts appear in the episode "Morituri Te Salutamus." The known names of the gladiators are Apirian, Priscus, Hyperion, Ferrus, Amazonia, Verus, Primo, Achillea, Tetraides, Triumphus, Rutuba and Romulus & Remus. When they were alive they were forced by the Fight King to fight other ghost gladiators and then eventually each other. As Finn and Jake fought them they were screaming cries for forgiveness and the names of the friends they killed or were killed by. After Finn killed the Fight King by shattering his sword, the ghosts were freed and ascended into the sky in pairs, followed by the Arena they were imprisoned in.

Appearance
The ghosts appear to look as they were when they died, including one who is decapitated. Some of them seem to be composed of two people melded together, as with the two-headed gladiator Romulus & Remus.

List of gladiator ghosts

 * Romulus & Remus

Quotes
See Gladiator Ghosts/Quotes

Trivia

 * Romulus and Remus are the names of the legendary brothers who supposedly founded Rome, where gladiators originated.
 * Ferrus means "iron" in Latin.
 * Amazonia means "Amazon" in Latin.
 * Primo means "first" in Latin.
 * Triumphus means "the triumph of" in Latin.
 * According to Andy Ristaino, all the Gladiator Ghosts are homosexual.
 * When one of the ghost disappeared, he said "Et Tu Ferrus". A reference to Caesar's death words, "Et Tu Brute". In Latin it means "You too Ferrus".
 * Verus means "the true" in Latin.
 * Priscus means "antique" in Latin.