Often the new spouse or the prodigal child returning. The Usurper challenges the existing hierarchy. In The Godfather, Michael Corleone begins as the "clean" war hero—the Usurper of the family’s criminal values—only to become the cruelest don of all.
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This character is the emotional sponge of the group. They absorb every insult, mediate every argument, and sacrifice their own mental health to maintain the illusion of a "happy family." Their eventual breakdown—usually in the middle of a holiday dinner—is the climax of many great family drama storylines. Often the new spouse or the prodigal child returning