She is suspicious of Dennis's story. Rebecca Rittenhouse as Serrena Halstead, a rival actress who seems to audition for a lot of parts that Andrea is going for, and lands them. Matt McGorry as Brett, Andrea's cousin, and an actual Yale graduate Tyler Cameron as Ruggedly Handsome Man Taylor Hill as Chanterelle Kimia Behpoornia as Maggie, Dennis's roommate Beth Dover as Leslie