You can always imagine the characters as you want but here is my listing for the cast.
Gigi Hadid as Madison Fray/Smith
_____________________________________
Alex Pettyfer as Jason Fray/Smith
_____________________________________
Francisco Lachowski as Tyler Watson
____________________________________
Matthew Daddario as Kevin Watson
____________________________________
Colton Haynes as Alex Johnson
_____________________________________
Elle Fanning as Anna Thompson
_____________________________________
Shay Mitchell as Kayla Roberts
_____________________________________
Ebba Zingmark as Liz Jackson
_____________________________________
Lee Ji-eun (IU) as Susan Summers
_________________________________
Lilly Singh (iisuperwomanii) as Khushi Sharma
______________________________________
Kim Taehyung (V) as Ron Summers
_____________________________________
Chris Brochu as Travis Prior