Frog

Frog (カエル, Kaeru^?, lit. Frog) is a knight from 600 AD, whose real name is Glenn. He was presumably a squire under Cyrus, a "Knight of the Square Table." Glenn had a notably close, although platonic, friendship with Queen Leene. He later witnessed Cyrus's death at the hands of Magus, and shortly afterwards, was transformed into an anthropomorphic frog by the dark wizard. Frog dedicates his life to protecting Queen Leene and vows to avenge Cyrus by killing Magus. Blaming himself for failing to be strong, Frog is depicted as chivalric but mired in regret over the past. He is the true bearer of the Masamune, an ancient sword whose offensive capabilities against magic users is Magus's major weakness. Frog can later put Cyrus' ghost to rest, regaining his courage and clearing his conscience, and he has the opportunity to either defeat or ally himself with Magus. Frog wields a broadsword and can learn "Water" magic once he meets Spekkio; like Marle, he also features a few healing techs.

Frog's Japanese name Kaeru is a pun as this can be read both as "frog"（蛙）or the verb "to transform, to change" (変える). In the English translation Frog speaks in a grandiose, semi-Shakespearean manner, using words such as 'thou' 'thee' and 'shalt,' though strangely no one else from his era speaks that way—including Frog himself, when shown in flashbacks as Glenn. In the Japanese version, he does not speak with the "Middle Ages Accent", and instead talks rather rudely. In Chrono Cross, a similar-looking but unrelated character named Glenn appears.

In the Playstation version, during an ending cutscene, Frog is shown as Glenn once more.