Nicky Donaldson-Katsopolis

Nicholas "Nicky" Donaldson-Katsopolis is one of the two sons of Jesse Katsopolis and Rebecca Donaldson. Nicky also has a twin brother, Alex Katsopolis, and a baby sister, Stella Katsopolis. They are the nephews of Danny and he is also one of the twin cousins of DJ, Stephanie, and Michelle along with his brother.