Nicholas "Nicky" Katsopolis is a special guest character on Fuller House. Nicky was born on November 12, 1991 and is a fictional character on Full House and Fuller House. He is the son of Jesse and Becky Katsopolis and identical twin brother of Alex.

He is portrayed by Blake Tuomy-Wilhoit.


He was born to Jesse and Becky Katsopolis, who named him after Jesse's father Nick Katsopolis. Becky got pregnant with Nicky and his twin brother Alex and had trouble breaking the news to Jesse. She tries to tell him in a candlelight dinner but Jesse was too happy to go on tour. Later she told him in a game of Pictionary. On Michelle's birthday they had the twins. In "Nicky and/or Alexander", Jesse mixes them up by taking off their booties and put Alex's booties on Nicky. Later he inks Alex's foot. Then Becky finds out.


On Full House, Nicky, much like Alex, is a humorous and mischievous character. Throughout the seventh and eighth seasons, they caused trouble worth more than the two of them combined, let alone singular. They adore each other, which caused them to cling on each other until Jesse and Becky had them find their own personalities. They also were the focus of Jesse's attention and he tried to raise them the way that his own father never had, but it usually led to them overpowering him until Becky comes in with her motherly advice to him. Nevertheless, they are both still mischievous and cause much stress to their parents' lives.

-Thanks to the Full House Wiki (Our Sisters Wiki)

Fuller House

After Full House ended he (and Alex) graduated from high school. In Fuller House Nicky and Alex are in college, they are planning to open up a fish taco truck business together, and they move back in with Jesse and Becky.



  • Rebecca Katsopolis (mother)
  • Jesse Katsopolis (father)
  • Alex Katsopolis (brother)
  • Danny Tanner (uncle)
  • Pamela Tanner (aunt; deceased)
  • D.J. Fuller (cousin)
  • Stephanie Tanner (cousin)
  • Michelle Tanner (cousin)
  • Irene Katsopolis (paternal grandmother)
  • Nicolas Katsopolis (paternal grandfather)
  • Nedra Donaldson (maternal grandmother)
  • Iorgos Katsopolis (great-grandfather)
  • Gina Katsopolis (great-grandmother)
  • Pamela Katsopolis (Adoptive Younger Sister)

Fuller House:

-Thanks to the Full House Wiki (Our Sisters Wiki)

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