Sienna Ashford, 19

Description / Characteristics of this role

Sienna is Mason's older sister and a former close friend of Blair. She's confident, mature, observant, and isn't afraid to speak her mind. Because she's older than Mason and knows him extremely well, she's one of the few people who can actually call him out when he's being reckless or immature.

Sienna and Blair used to be best friends, but their friendship fell apart after Blair pursued Mason despite Sienna warning her that he was bad news. Sienna knew Mason well enough to know he wasn't looking for anything serious, but Blair ignored her warning. After everything that happened between Blair and Mason, things between Sienna and Blair were never the same.

Sienna is not introduced immediately and will initially be mentioned by the other characters before eventually appearing in the series.

Voice: Female, around 18–20. Confident, mature, calm, and slightly sarcastic. Her voice should feel warm when she's around people she cares about, but she should also be able to sound serious and intimidating when necessary.

Role: Supporting