But it looks like KJ has clicked super well with newcomer, Charles Melton.
Charles has replaced Ross Butler for the role of Reggie - Archie's nemesis on the show. But they're far from enemies off the screen.
The pair have been majorly hanging out, just proving some more that the entire crew are like best friends IRL.
They've also started playing pranks and tricks on each other, something Cole and KJ are pretty used to doing...
HONESTLY, can we just live on set? It looks like so much fun... And everyone is like really hot.