The Harry Potter games for years 5-7 (Order of the Phoenix, Half-Blood Prince, and Deathly Hallows Part 1 & 2) do not allow you to customize your character. You play as Harry Potter, and the games are story-driven, focusing on his experiences and the plot of the books.
Customization options are more prevalent in the earlier Harry Potter games, like:
* Harry Potter and the Sorcerer's Stone (PS2, PC, etc.): You could choose your character's gender, appearance, and even Hogwarts house.
* Harry Potter and the Chamber of Secrets (PS2, PC, etc.): Similar customization options to the first game.
* Harry Potter and the Prisoner of Azkaban (PS2, PC, etc.): Offered some choices in clothing and character traits.
So, you can't customize your character in years 5-7 games. You're stuck with Harry Potter's iconic look and journey!