Who Is Mr Whatsit? Holly Wheeler’s Imaginary Friend Is Key To Stranger Things

THE RUNDOWN

• Holly Wheeler is Mike and Nancy Wheeler’s younger sister in Stranger Things.
• In Season 5, she has become a main character with the Duffer brothers sharing that she is key to the plot of the finale.
• Holly Wheeler’s imaginary friend, “Mr Whatsit,” will also play a significant, ominous role in this season.
• Holly has been recast this season with 14-year-old New Zealand actress Nell Fisher.