My opinion!!!
The Shatter Me movie adaptation is going to be very messy. The audience won't be satisfied with the director's picks for actors. Especially how most of the readers have already visualized Aaron Warner. The one who will hit hardest is the actor who ends up starring as Aaron Warner, who will disappoint the audience. It might ruin the image most readers have of many Shatter Me characters. But I do have high expectations for this. I do hope the actors and actresses fit the characters' descriptions and personalities.
Controversial part: Hudson Williams might fit Kenji's role. It's part of his nature to be this unfiltered. Many people suggest that Jeremy Dufour could fit Aaron's role, but his career is primarily modeling, based on my research. I doubt Jeremy will agree to fill in an acting role when he models. Also, I found in the Fancast "Niclas Gillis." I personally never watched his movies or series. I don't have a straight opinion on who should be Juliette, but I would've loved it if "Candel Gallo" acted as Juliette. She doesn't entirely match her looks, I know that. One photo of Candel reminded me of Juliette. I didn't mention Adam because any ordinary brunette would fit him. He isn't as distinct as the other popular characters.
The first photo is Niclas Gillis, whereas the second photo is Jeremy Dufour.
Candel Gallo portrays Juliette well.
Just ignore Connor in the photo. I couldn't find a fitting solo photo of Hudson that looks like Kenji in this fan art.
Of course, none of this art belongs to me. All credits to rightful owners. None of this is meant to offend anyone. It's just my opinion! Please comment on who you think should star in Shatter Me. No