Carrot is a rabbit mink and a member of the Inuarashi Musketeer Squad. She joined the Sanji Retrieval Team to rescue Sanji on Whole Cake Island.
Carrot is loved by everyone and has the potential of becoming a Strawhat crew member. She’s very strong and has developed a great relationship with the Strawhat Pirates.
She could be the watch on top of the boat (we’ve seen her at this position multiple times already). Like the other Straw Hats members she has a dream, and it is to see the world. She’s a female character and it’s been a long time since the crew got a female character in the mix (I really believe there will be a third woman in the crew before the end of the journey).
Mr. 2 Bon Kurei, is a former officer agent of Baroque Works and an okama. While he was once an enemy of Luffy’s as a member of Baroque Works, the two became quick friends, leading Bon Kurei to sacrifice himself for Luffy both at Alabasta and later at Impel Down.
He is currently in Impel Down not as a prisoner but as Okama Queen in level 5.5 . There is a high possibility of him joining Luffy in future.
Caesar Clown is a former colleague of Vegapunk and the leading expert on chemical weapons of mass destruction.
Caesar’s dream is to surpass Vegapunk and become the greatest scientist in the world. Luffy’s crew at the moment doesn’t have a scientist it would make sense if Caesar became the Straw Hat scientist.
Caesar is hated by most of the Straw Hats, even more now that Wano Arc revealed that it was for the reason that 90% of the SMILEs eaters who ended up smiling for the rest of their lives that Doflamingo, Caesar, and Kaido named the fruit SMILE, cruelly mocking their misfortune.
As we know the Straw Hat Pirates crew is basically a family and they don’t want some murderous child kidnapper and child abuser in their family.
Caesar is evil and he doesn’t want to be redeemed.
Yamato is the daughter of Kaido. She is otherwise widely referred to as his son due to often presenting herself as a man as a result of her profound admiration for the legendary samurai Kozuki Oden and her aspiration to emulate him.
This path has put Yamato at odds with Kaido, with much of his life being spent imprisoned on Onigashima. Yamato befriended Portgas D. Ace during his visit to Wano Country, and after learning of Ace’s death waited for the arrival of his sworn brother, Monkey D. Luffy. Together with Luffy and the Ninja-Pirate-Mink-Samurai Alliance, Yamato helped defeat Kaido and the Beasts Pirates, and now intends to join Luffy’s crew upon their departure from Wano Country.