Suzie because she isn't really in the eps she only in 2-3 eps and she only appears for a few minutes

I'd say Murray or Lucas. Tbh, Erica is already pretty popular, and it's not like Argyle and Suzie have that much of a personality. So far Argyle and Suzie are likable, but not exactly lovable. I might change my mind if we get more scenes of them in S5.

Lucas doesn't get nearly as much recognition as he should

I felt like Lucas got some attention in S4. So Lucas.

Erica and Murray already had a lot of scenes and are loved

Argyle ans Suzie are just beginning characters.

Lucus is amazing

Lucas I think...

I have to say Lucas is underrated