Katie Cassidy (1986 - )
Film Deaths
- When a Stranger Calls (2006) [Tiffany]: Strangled to death by Tommy Flanagan in the woods outside the house; her body is shown afterwards when Camilla Belle discovers her in the bathroom.
- Taken (2008) [Amanda]: Injected with an overdose of heroin (off-screen) by Arben Bajraktaraj; her body is shown afterwards when Liam Neeson discovers her.
- A Nightmare on Elm Street (2010) [Kris Fowles]: Slashed across the chest by Jackie Earle Haley in her dream (causing her to be thrown around the room and slashed in the real world as well), as Thomas Dekker looks on in horror (see also Amanda Wyss' death in the original film).
TV Deaths
- Harper's Island: Gasp (2009) [Trish Wellington]: Stabbed in the stomach by Christopher Gorham.
- Arrow: Legends of Yesterday (2015) [Laurel Lance]: Vaporized (along with Emily Bett Rickards, Danielle Panabaker and David Ramsey) when Casper Crump causes a megablast from the Staff of Horus (This timeline is altered, however, due to Grant Gustin running fast enough to go back to the previous day, so Katie is still alive in the present time).