Female Girls/Back to the Future

Star Butterfly (form Star vs the Forces of Evil) as Marty McFly

Mama Odie (from The Princess and the Frog) as Dr. Emmet Brown

Ash Ketchum (from Pokemon) as Lorraine Baines

Dawn (from Pokemon: Diamond and Pearl) as George McFly

Lady Caine (from Tangled: Before Ever After) as Biff Tannen