Sophie is a girl Manny meets and dates in "Won't You Be Our Neighbor" and is also the granddaughter of Jay's biggest business rival, Earl Chambers.
Manny met Sophie in his theater group and she appears when Jay is demonstrating a new work idea of his and when Sophie sees this, she reveals everything she knows about it, surprising Jay, but then Jay becomes furious when he finds out that his biggest business rival Earl Chambers who betrayed him years ago is Sophie's grandfather.
Jay forbids Manny to see her again, unlike Gloria, and tries to get Earl and Jay to work out their problems, but it seems that their rivalry remains.