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In a sun-soaked Hawaiian town with a mysterious past, a group of friends is left with a dark secret after a tragic accident. One year later, a member of the group receives a threatening message, and the friends now know that someone intends to make them pay for last summer.

  1. Craig Macneill


  2. Benjamin Semanoff


  3. Logan Kibens


Series Cast

  1. Madison Iseman as Lennon / Alison

    Madison Iseman

    Lennon / Alison

    8 Episodes

  2. Bill Heck as Bruce

    Bill Heck


    8 Episodes

  3. Brianne Tju as Margot

    Brianne Tju


    8 Episodes

  4. Ezekiel Goodman as Dylan

    Ezekiel Goodman


    8 Episodes

  5. Ashley Moore as Riley

    Ashley Moore


    8 Episodes

  6. Fiona Rene as Lyla

    Fiona Rene


    8 Episodes

  7. Cassie Beck as Courtney

    Cassie Beck


    8 Episodes

  8. Brooke Bloom as Clara

    Brooke Bloom


    8 Episodes

  9. Danielle Delaunay as Hannah Scanlon

    Danielle Delaunay

    Hannah Scanlon

    5 Episodes

  10. View More

Full Cast & Crew

Last Season

Season 1

2021 • 8 Episodes

Season 1 of I Know What You Did Last Summer premiered on October 14, 2021.

Your Next Life Could Be So Much Happier

(1x8, November 11, 2021) Season Finale

View All Seasons

I Know What You Did Last Summer
I Know What You Did Last Summer


Status Canceled


  • See more TV shows from Prime Video...

Type Scripted

Original Language English


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