Klingbeil will become the 35th player to pull on the hoops for the VFL Cats this season.
She played for the Oakleigh Chargers in the inaugural TAC Cup Youth Girls competition and was a member of the VAFA interleague squad in 2017.
Saturday's game, which begins at 10am, is a curtain raiser to the men's VFL clash between Geelong and the Northern Blues.
VFL Women's: Round 10
Darebin Falcons v Geelong Cats
Saturday, July 29, Ikon Park, Carlton, 10am
CATS TEAM
Backs: Krista Woodroffe, Bec Goring (captain), Lara Williams
Half-backs: Elise Coventry, Anna Teague, Laura Taylor
Centres: Renee Garing, Richelle Cranston, Hannah Burchell
Half-forwards: Danielle Higgins, Maddie Boyd, Hayley Trevean
Forwards: Hannah Mangan, Kate Darby, Michele Fedele
Followers: Cassandra Hynes, Cassie Blakeway, Lily Mithen
Interchange from: Emily Crawford, Emily Ramsay, Riley Shapter, Millie Klingbeil, Cheryl de Groot, Emma Delaney, Madisen Maguire