One Piece

1. Monkey D. Luffy (Captain)

• Nickname: Straw Hat
• Power: Devil Fruit Gomu Gomu no Mi (rubber body)
• Personality: Kind, brave, innocent and determined
• Dream: To become the King of the Pirates

2. Roronoa Zoro (Swordsman)

• Nickname: Pirate Hunter
• Skill: Expert Swordsman (Three-Sword Style)
• Personality: Serious, strong and loyal
• Dream: To become the best swordsman in the world

3. Usopp (Sniper)

• Nickname: God Usopp
• Ability: Expert sniper and liar
• Personality: Coward, liar and comedian
• Dream: To become a brave warrior of the sea

4. Sanji (Cook)

• Nickname: Black Legs
• Ability: Expert cook and fighter with kicking skills
• Personality: Gallant, romantic and passionate
• Dream: Find the All Blue (a place with all the types of cuisine in the world)

5. Tony Tony Chopper (Doctor)

• Nickname: Cotton Candy Lover
• Power: Devil Fruit Hito Hito no Mi (can transform into a human)
• Personality: Kind, innocent and passionate doctor
• Dream: To become a doctor who can cure any disease

6. Nico Robin (Archaeologist)

• Nickname: Demon Girl
• Power: Devil Fruit Hana Hana no Mi (can create copies of its limbs)
• Personality: Mysterious, strong and brave
• Dream: To discover the true history of the world

7. Franky (Cipriano)

• Nickname: Cyborg
• Ability: Expert carpenter and cyborg
• Personality: Kind, strong and creative
• Dream: To build a ship that can sail around the world

8. Brook (Musician)

• Nickname: King of Soul
• Power: Devil Fruit Yomi Yomi no Mi (can revive once after dying)
• Personality: Musician, comedian and brave
• Dream: To play music all over the world and make people feel happy

9. Nami (Navigator)

• Nickname: The Cat Burglar
• Skill: Expert navigator and cartographer
• Personality: Strong, brave and passionate
• Dream: Draw a map of the whole world

In this one I didn't include Jimbe because he hadn't appeared with them in that arc yet.

Monkey D. Luffy

Hair: Black, short and disheveled.

Eyes: Large, round, black.

Clothing: His iconic open red jacket, blue shorts, yellow belt, and sandals. He sometimes wears a long coat or special outfits depending on the arc.

Other traits: He always wears his straw hat, has a scar under his left eye, and a large X on his chest. His attitude is carefree and cheerful.

Nami

Hair: Long and orange, sometimes combed to one side.

Eyes: Brown.

Clothing: She generally wears light, revealing clothing such as tops and shorts or skirts. She wears heels. In Egghead, she wears a futuristic white suit.

Other features: Slender and very attractive. She carries her Clima-Tact stick and often has a tattoo on her left shoulder.

Roronoa Zoro

Hair: Green, short and spiky.

Eyes: Black. He has a closed scar on his left eye (he doesn't open it).

Clothing: Green or black pants, a sash, and an open shirt. He wears a dark green coat in Wano and kimonos.

Other features: Muscular physique. He carries three katanas (a three-sword fighting style) and a black bandana that he ties around his head when fighting.

Nico Robin

Hair: Black and long, straight, usually loose.

Eyes: Dark blue.

Clothing: Elegant and sensual; dresses, leather suits, or tight-fitting garments. In Wano, she wears a kimono.

Other traits: Fair skin, fine features. Serious and sophisticated. Can make limbs appear thanks to her Hana Hana no Mi.

Usopp

Hair: Black, curly and long, tied back with a bandana.

Eyes: Black.

Clothing: Adventurer style with goggles, overalls, or loose pants. Egghead wears a futuristic helmet.

Other traits: Very long nose. Slim but more muscular after the timeskip. Uses a large slingshot (Kabuto) and sniper tools.

Tony Tony Chopper

Base form: Small bipedal reindeer with a wide-brimmed pink hat and a white cross.

Eyes: Large and blue.

Hair: Light brown.

Clothing: Wear shorts, a backpack and sometimes jackets.

Other traits: He can transform into multiple forms thanks to the Hito Hito no Mi. He has reindeer antlers and sometimes appears as a cute pet (chibi form).

Franky

Hair: Bright blue, combs it up or changes depending on the bow.

Eyes: Black, sometimes with glasses.

Body: Cybernetic, very muscular, huge arms.

Clothing: Hawaiian clothes, red speedo, open shirt or mechanical suits.

Other features: Metallic nose, star tattoo on his arms. Can launch missiles and transform into a giant tank or robot.

Brook

Hair: Giant black afro.

Body: Full skeleton (due to his Yomi Yomi fruit).

Clothing: Rocker or elegant style: suit, glasses, top hat, feathers, or a cane. In Wano, he wore traditional yokai clothing.

Other traits: Very tall (over 2.80 m), he always jokes about being dead. He uses a reed sword and plays the violin or guitar.

Sanji Vinsmoke

Hair: Blonde, combed to one side (after the timeskip it covers the right eye).

Eyes: Black, with spiral eyebrows.

Clothing: Elegant, with a suit, shirt, and tie (sometimes with gloves). In Egghead, he wears a black tech suit.

Other traits: He's always smoking, very handsome, and slim. He fights with his feet only (Black Leg Style) and is extremely gentlemanly with women.