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For other uses, see Monster (Disambiguation).

Monster[6] is an officer of the Red Hair Pirates.[4] He first appeared playing with his crew at the Partys Bar.[2]


Monster is a relatively large monkey with tiny eyes and head fur tied up into a topknot. Like many monkeys, he has brown fur over most of his body, but has white fur on his stomach, face and hands.[2]

12 years ago, Monster was smaller, with beady eyes and no topknot.


Monster 12 years ago.png
Monster as he appeared 12 years ago.
Monster Episode of East Blue.png
Monster as depicted in Episode of East Blue.


Monster seems to be very jolly and fun-loving, as he was seen partying with Shanks and his crew.[2]

In the Red Hair Pirates, he is frequently seen perched around Bonk Punch's shoulders.[3][7]

Abilities and Powers

Monster is an officer in the Red Hair Pirates, giving him authority over lower-ranking crew.[4] It is unknown if Monster has any sort of fighting capability, but he seemed aggressive and battle-ready during the Summit War of Marineford.[3]


East Blue Saga

Romance Dawn Arc

After Luffy stabbed his own eye, Monster partied with the Red Hair Pirates at Partys Bar in celebration of Luffy's craziness.[2]

Summit War Saga

Marineford Arc

Monster showed up alongside Bonk Punch and fellow main fighters of the crew in order to stop the Summit War of Marineford, being ready to fight if the fighting kept on.[3]

Four Emperors Saga

From the Decks of the World: The 500,000,000 Man Arc

After the timeskip, Monster and some members of the Red Hair Pirates were at the ruins of a certain island.[7]

Translation and Dub Issues

His name was romanized as Monstar by some early fan translations. However, it is spelled "Monster" in the English edition of the 7th popularity poll, to date the only professional rendering.[1]


  • Monster is classified as a Type B creature, "Small Friendly".[8]
  • Monster may be named after the Monster Energy brand of energy drinks. This fits with the drink-based naming scheme of some of the Red Hair Pirates.


  1. 1.0 1.1 See One Piece World Top 100's East Blue section.
  2. 2.0 2.1 2.2 2.3 2.4 One Piece Manga — Vol. 1 Chapter 1 (p. 6), Monster makes his debut.
  3. 3.0 3.1 3.2 3.3 One Piece Manga and Anime — Vol. 59 Chapter 580 (p. 10-11) and Episode 489, Monster shows up in the Summit War.
  4. 4.0 4.1 4.2 SBS One Piece Manga — Vol. 101, Monster is revealed to belong to the Red Hair Pirates.
  5. Vivre Card - One Piece Visual Dictionary (EX Characters: East Blue Saga Vol. 1 #0016), Monster's birthday is revealed.
  6. One Piece Blue: Grand Data File (p. 30), Monster's name is revealed.
  7. 7.0 7.1 One Piece Manga — Vol. 83 Chapter 837, cover story: From the Decks of the World: The 500,000,000 Man Arc Vol. 24.
  8. One Piece Blue: Grand Data File (p. 88-89), Classification of animals by danger.

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