Anna Cathcart, star of the netflix series 'Xo, Kitty', initially thought the show was a joke when it was first pitched to her. The series, a spin-off of 'To All The Boys', is now in its third season, with cathcart and co-star sang heon lee discussing their characters' relationship arc. The new season is being promoted with early previews and interviews with the cast, including cathcart, who is also being featured in various media outlets.