The Straw Hat Pirates are at the center of things in every One Piece arc. They are led by their energetic captain, Monkey D. Luffy, who dreams of becoming the Pirate King. Originally, Luffy set out on his own but after some time, he started to recruit crew members.

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He knew that it was impossible to realize his dream on his own. So far, there are a total of ten Straw Hats—Luffy, Zoro, Usopp, Sanji, Nami, Chopper, Robin, Franky, Brook, and Jimbei. However, there are chances that more One Piece characters might end up joining the crew. There are many candidates, but in this list, we will be taking a look at the best of the bunch.

8 Charlotte Katakuri

Katakuri One Piece

Charlotte Katakuri is one of the Sweet Commanders of the Big Mom Pirates. He made his debut in the series during the Whole Cake Island arc. Katakuri was the first character, who displayed the use of Advanced Observational Haki.

During his fight against Luffy, Katakuri helped the latter to evolve and become stronger. He acted as a mentor for Luffy, and the two respect each other very much. If Katakuri ends up joining the Straw Hats, he would provide a big boost to the crew's strength.

7 Yamato

Yamato drinking with Ace

Yamato has become one of the most popular characters in the series. The self-proclaimed son of Kaido nearly broke into the top 10 in the most recent fan popularity polls. Yamato's personality has endeared him to the One Piece community.

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Despite being Kaido's son, Yamato joined hands with Luffy to take down his father. He managed to fight 1v1 against Kaido for a considerable amount of time, which is a big feat in itself. Yamato has also met with Ace, which is another thing that ties him closely to Luffy. Above all, Yamato wants to explore the sea and what better way to do that than with the crew of the future Pirate King.

6 Carrot

Carrot One Piece

The mink joined the Straw Hats on their journey during the Zou arc. She went to Whole Cake Island with the crew as they tried to rescue Sanji from the clutches of Germa 66 and the Big Mom Pirates.

Carrot played an important role in their mission as she put her life on the line. Carrot has a very good bond with the crew, especially with Chopper. She has a sharp eye, which is why she is an excellent lookout.

5 Marco

One Piece - Marcos Human Form Next To His Full Phoenix Form

For a long time, Marco served under the command of the "Strongest Man in the World," however, after the Summit War's conclusion, Marco retired to a secluded island. There's is no doubt that Marco is a very skilled fighter, as he has shown that he can fight against the likes of King, Queen, Kizaru, etc.

Marco has a close bond with Luffy as the latter managed to free Ace from the clutches of the Marines. After Ace's death, Marco ensured that Luffy would survive at all costs. He has Ace's will to protect Luffy, which would make him a fine addition to the crew.

4 Vivi

one piece Vivi anime

Vivi is the princess of Alabasta, and formerly a member of the Straw Hat Pirates. She sought the help of the crew when her kingdom was under threat by Crocodile, one of the Shichibukai. She joined the crew and fought against the Baroque Works. Vivi's addition to the crew was well-received by the fans.

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Vivi's efforts were finally rewarded as the crew managed to get rid of the threat. When the crew had to set sail, Vivi decided to stay behind as she could not ignore her duties as the princess. There is still a chance that in the future Vivi might come back to the crew.

3 Bon Clay

One Piece Bon Clay and Luffy fighting together

Originally Bon Clay was an enemy of the Straw Hats, but towards the end of the Alabasta arc, he became one of their allies. When the crew was about to be captured by the Marines, Bon Clay gave up his own freedom and let himself be arrested, so that the Straw Hats could escape.

During the Impel Down arc, Bon Clay once again proved to be invaluable as he decided to stay behind in order to allow Luffy to escape to Marineford with the rest of the prisoners. His acts of selflessness have won over the hearts of the fans, and there's no doubt that he would be a welcome addition to the crew.

2 Smoker

One Piece Smoker Smoking A Cigar

Smoker is a Navy vice-admiral, but he is quite different from the other Marines. He has a strong sense of justice, but unlike most Marines, he cannot turn a blind eye to the dodgy decisions of the World Government.

He has a history with Luffy and he has been chasing him all over the world, but siding with the Straw Hats would allow Smoker to go against the questionable policies of the World Government. Also, it is worth mentioning that Smoker is very likely influenced by Gol D. Roger.

1 O-Tama

O-Tama in Wano

O-Tama made her first appearance during the Wano Country arc. Despite just being a child, O-Tama is a very courageous person. She joined the battle at Onigashima and she helped the Straw Hats to turn the tide of the battle with her devil fruit ability.

She cares about all the people, who are close to her. Before the Straw Hats came to Wano, O-Tama had asked Ace to take her with him, but Ace declined as she was too young. In Luffy, she found an elder brother once again and this might be the opportunity that she was looking for.

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