Sachs found that Walter knew pieces of scenes and suggested "stuff that works".
Mc Cord was cast because, according to Sachs, "she's someone who is worldly, and there's a sophistication to her that's interesting." Sachs and Judah had seen Grimes' work before and knew "she had the acting chops", and she was cast after acting a dramatic scene which she "just killed".
Sachs stated, "she can act, she's beautiful, and she can give this sweet cuteness [that lets us see] through her eyes into this world." Lori Loughlin auditioned for the role of Debbie and was given the part immediately.
She becomes friends with Silver over a Division Day sticker in the episode "We're Not In Kansas Anymore".
She struggles to find her place in California and to maintain her sweet nature.
The family relocated in order to care for Harry's mother Tabitha (Jessica Walter).