Peck is a pirate-subordinate of Brandeau. He is a trustee of Brandeau until his death. He appeared in Suikoden IV first with his demon appearance and in Suikoden Tactics as a human and showing the reason of his transformation.
During the night assault on the pirate Steele, Peck's main task is to monitor the Rune Cannon. When Steele unleashes the power of the Rune of Punishment, the cannon explodes, and Peck is transformed into some kind of ghoulish imp. Peck pledges his services to the accursed Brandeau, as neither of them will be able to lead normal lives.
Peck being an imp appeared with Brandeau's during attack at the Gaien Ship where Lazlo along with Snowe and Ramada boarded. Unfortunately, he died when Brandeau used the Rune of Punishment when they were captured by Glen Cott and Lazlo.
- In Suikoden IV, he was not named "Peck" in the game and it seems his character is still under development in which he appeared as a human in Suikoden Tactics.
- His weapon makes some changes throughout both games; in Suikoden IV, he throws magical razor rings, but in Suikoden Tactics, his weapon is throwing knives.