the first thing I noticed was the difference in ambience, mainly the reverb of the room. Especially on Cassie and Reyes this is apparent and distracting (“ruining” to use your words). You can always add reverb later, but removing it is not that easy. So record as “dry” as possible.
Cassie, Head ghost, Ray, Reyes and Willy sound too much treble (thin, missing mid/bass). Now, in Cassie’s case, that may not be an issue (as long as she’s on the radio anyway) as it sounds like an 1987 transistor radio. Especially for Ray and Reyes, being main characters with a lot of lines, I would look into getting a more balanced sound recording. Probably the different microphone quality is an issue, but also some (more) EQ is definitively needed here.
Lookalike2 sounds great! As does Ransome. But I’d choose lookalike2 in any contest
Overall, I think recreating the personalities of the different characters, i.e. the acting, is pretty impressive!