I Know What You Did Last Summer Cast

42 cast members · 8 with active Attention Score

Most Popular I Know What You Did Last Summer Cast Members

Madison Iseman is currently the most popular I Know What You Did Last Summer cast member online with an Attention Score of 4.0. Updated November 1, 2026.

Madison Iseman

Lennon / Alison · 8 eps

Connor Davenport · 2 eps

Keola Simpson

Mr. Davenport · 2 eps

Sebastian Amoruso

Johnny · 2 eps

Danielle Delaunay

Hannah Scanlon · 5 eps

Victoria K. Schmidt

Officer Ulani Kalama · 4 eps

Officer Doug Cruise · 2 eps

Lori Pelenise Tuisano

On Camera Singer · 1 eps

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Cast Popularity FAQ

Who is the most popular I Know What You Did Last Summer cast member right now?

Madison Iseman is currently the most popular I Know What You Did Last Summer cast member online, with an Attention Score of 4.0 and an overall actor rank of #1,427 as of November 1, 2026.

How many cast members does I Know What You Did Last Summer have?

I Know What You Did Last Summer has 42 credited cast members. 8 of them have an active Attention Score on Television Stats today.

Which I Know What You Did Last Summer cast member has the highest career peak?

Brianne Tju has the highest Peak Attention Score among the I Know What You Did Last Summer cast, reaching 3.5 at their career high.