The boy has a strong character.

这孩子个性很强。

《新英汉大辞典》

He just needs to be strong, but he is a strong character, so he will be fine.

亚伦需要坚强点，他本来就是个性格坚强的球员，他会没事的。

youdao

She was both submissive but also a strong character; she became very much Madame Picasso.

她温顺又非常有个性；她变得很像是毕加索夫人。

youdao

Having a strong character is just as important, perhaps most important.

VOA: standard.2010.04.06

He took it badly and was down for a long time, but he is a strong character and eventually bounced back.

BBC: World Cup scouting: goalkeepers

Crystal Dynamics' goal wasn't to make Lara less of a strong character but to show how those iconic traits about Lara were forged.

CNN: 'Tomb Raider' reboot introduces timid young Lara Croft

Styling is close to, but is a bit curvier at the back end than our original photoshopped prediction (below), with a strong character line running along the side of the vehicle.

FORBES: New Info: Maserati and Bentley to Sell SUVs