Fun fact: John Hughes, who directed the film, almost fired Nelson because he stayed in character and continued to mock Molly Ringwald when they were no longer filming. However, the other actors convinced Hughes to let him stay.
#2 Molly Ringwald as Claire Standish
Fun fact: Ringwald was originally cast to play Allison, but she persuaded John Hughes to recast her as Claire.
#3 Emilio Estevez as Andy Clark
Fun fact: Estevez was originally supposed to play John Bender, but Hughes couldn't find anyone to play Andy, so he asked Estevez to switch roles.
#4 Anthony Michael Hall as Brian Johnson
Fun fact: Hall turned 16 while they were filming, and the cast went to Chuck E. Cheese to celebrate.