Mandy

Mandy is one of Alexis's old friends from her jet-setting, name-dropping past life, a glimpse of the glossy world the Roses have lost. She turns up polished and blithe, chattering about exes and adventures with total confidence, oblivious to how far the family has fallen or how uncomfortable her presence makes things.

She's a needle used sparingly: a single scene of breezy, oblivious privilege that makes Alexis's growth visible by contrast. Stefani Kimber plays her with such cheerful, unbothered sincerity that the character never tips into cartoon villainy, just makes the audience feel exactly how far Alexis has traveled from that life.