Suggestions by @visno

Chrono Trigger

as Video Games in Mount Rushmores

Final Fantasy VII

as Video Games in Mount Rushmores

Final Fantasy VI

as Video Games in Mount Rushmores

Robert Englund

as Horror Stars in Mount Rushmores

Mr. Incredible

as Pixar in Mount Rushmores

WALL-E (Disney Character)

as Pixar in Mount Rushmores

Nemo (Finding Nemo)

as Pixar in Mount Rushmores

Buzz Lightyear

as Pixar in Mount Rushmores

Sheriff Woody Pride

as Pixar in Mount Rushmores

Chucky (Charles Lee Ray)

as Slashers in Mount Rushmores

Pinhead

as Slashers in Mount Rushmores

The Jigsaw Killer

as Slashers in Mount Rushmores

Michael Myers

as Slashers in Mount Rushmores

Ghostface

as Slashers in Mount Rushmores

Leatherface

as Slashers in Mount Rushmores

Jason Voorhees

as Slashers in Mount Rushmores

Freddy Krueger

as Slashers in Mount Rushmores

Nikola Tesla

as Scientists in Mount Rushmores

Isaac Newton

as Scientists in Mount Rushmores

Leonardo Da Vinci

as Scientists in Mount Rushmores