[s18e8] Chasing Theo -

: Played by Rachelle Lefevre , Theo's party-loving, neglectful mother.

: Played by Iain Armitage (best known for Young Sheldon ). [S18E8] Chasing Theo

: Played by Zoe McLellan , Nadine's ex-girlfriend who also fights for Theo's well-being. : Played by Rachelle Lefevre , Theo's party-loving,