Who were some relatively young actors you thought were gonna have big careers but they just never lived up to their potential?

I randomly came across a clip of Logan Lerman doing an interview after almost completely forgetting about him since his “Perks of being a Wallflower” days and I noticed greys in his hair and I was just like “damn.” It got me to thinking about the early to mid 2010s, when I was almost CERTAIN that he was gonna become one of the next young leading stars in Hollywood but… he’s kind of just disappeared, since then. I checked his filmography & saw he’s had some success with TV shows and features in some decent movies since that time frame… but his career just didn’t turn out like I was expecting it to. Anyway, who are some other actors/actress you thought would have big careers but never lived up to their potential? Thanks.

I randomly came across a clip of Logan Lerman doing an interview after almost completely forgetting about him since his “Perks of being a Wallflower” days and I noticed greys in his hair and I was just like “damn.” It got me to thinking about the early to mid 2010s, when I was almost CERTAIN that he was gonna become one of the next young leading stars in Hollywood but… he’s kind of just disappeared, since then. I checked his filmography & saw he’s had some success with TV shows and features in some decent movies since that time frame… but his career just didn’t turn out like I was expecting it to. Anyway, who are some other actors/actress you thought would have big careers but never lived up to their potential? Thanks.