• Leah Remini is best known from The King of Queens
  • The actress posts birthday wishes to her sister
  • In the photo, the two look confusingly similar

Leah Remini, 51, and her sister Nicole Remini-Wiskow, 54, used to look super alike. The King of Queens star congratulated her big sister on Instagram for her 54th birthday.

Leah Remini and her sister look like twins

For her sister Nicole's big day, Leah Remini shared a picture from their youth. The two could almost pass as twins. Leah and Nicole are dressed in all black and wear their long brown curls in casual ponytails.

Leah Remini and Nicole Remini

Would you have known who is who? That's Leah on the left and her sister on the right. In the caption, Leah Remini writes how the sisters used to perform plays and skits in the family living room. "Growing up, no one beat me up more than my much older sister," she began.

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"But she was also the first to indulge my desire to do plays and skits in our living room," writes Leah Remini, who recently made a declaration of love to her King of Queens co-star Kevin James.

Leah Remini can always count on her big sister for support, as she continues to write: "There is no one more loyal or protective in my life. You want Nicole in your corner if you're in a fight."