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Last Summer is a 2016 American Psychological Slasher Horror film written by Karyn Kusama and Kevin Williamson. Directed by Karyn Kusama it stars Ricardo Hoyos, Stevie Lynn Jones, Hayley Law, Kian Lawley, Haley Lu Richardson, Omari Hardwick and Muse Watson.

It serves as a prequel to the Kevin Williamson & Jim Gillespie 1997 film: I Know What You Did Last Summer which in turn is based on the Lois Duncan 1973 suspense novel of the same name.

The plot centres on the character David Egan, who appeared in the 1997 film and the events leading up to July 4th, 1996.

The film was released theatrically and in select IMAX theatres on July 4th (Independence Day) 2016 to mixed to mostly positive reception and commercial box office success.



  • Ricardo Hoyos as David Egan
  • Stevie Lynn Jones as Susie Willis
  • Hayley Law as Dianne Warwick
  • Kian Lawley as Winston Morrison
  • Jodie Comer as Missy Egan
  • Ruth Williamson as Anna Egan
  • Omari Hardwick as Deputy Neyall
  • Hayley Lu Richardson as May Donnelly
  • Muse Watson as Ben Willis
  • Austin Richard Post as Tai Gorman 'Gibble'
  • Kendall Jenner as Raleigh Thoms
  • Grace Saif as Mya Brennan
  • Stina Ekblad as Deputy Patrice
  • Michael Cassidy as Deputy Prinze