In the canon show Cardin is seen a faunus hater and just a general bully, being the foil for Jaune's natural meekness. After Jaune saved him from an Ursa during a class, it does seem like Cardin's bullying has been at the very least toned down. His weapon a large mace filled with red dust to add an explosion to his attacks. He, as far as I know, is not heard from after the Fall of Beacon in Volume 3 (Of which he was one of the defenders)

In JSPR, after the death of the Schnees in a terrorist attack, the Winchesters took over the Dust Company. He will essentially play the same role, albeit with a bit more adult themes and much more bold than he was in the canon show. Rather than being a stereotypical bully, he is a pompous faunus hating rich boy. His lineage also being that of hunters who fought faunus in the war, he has kept his family "values" towards faunus that they are in one way or another an "enemy". He is bringing more glory to his family name BUT he also has the arrogance in believing that he can take what he desires. He will play a larger role than his canon counterpart, by how much is still being decided. 

I am open for interpretation. Just know that Cardin is 18-20 and has an extreme ego. CRDL will play the foil of both JSPR and BRRN. 

If you wish to try and sound like the original actor: Adam Ellis here is a link, but again I am open for interpretation: https://www.youtube.com/watch?v=VSaAdkLThzs&ab_channel=%E2%84%9D%F0%9D%95%92%F0%9D%95%A7%F0%9D%95%96%F0%9D%95%9F%F0%9D%94%B9%F0%9D%95%A3%F0%9D%95%92%F0%9D%95%9F%F0%9D%95%A8%F0%9D%95%96%F0%9D%95%9F