Leonie has been Penelope's best friend since fourth grade and the two always stick together. Through the summer holidays, she takes any chance she can to contact her best friend over the phone and gets worried extremely quickly once Penelope doesn't answer within 10 minutes.

  This girl knows everything about everyone and is not afraid to tell the news to the world. The only secrets she keeps are from her closest of friends, of which she doesn't have too many. Even though she seems as though she is always the most confident, she can struggle with herself a lot. Leonie is a caring and loving mother-type figure for Penelope who can be active and energetic, but understanding in needed moments.