This document discusses how casting and characters can embody ideological values through semiotics. It explains key concepts like the signifier and signified that make up signs, and how denotation and connotation give signs meaning. Ideology is organized through codes that imply views of how the world is or should be. Casting heroes and villains with socially central actors reinforces dominant ideology. Examples given are Daniel Day-Lewis as Daniel Plainview embodying capitalism in There Will Be Blood, Meryl Streep as Sophie in Sophie's Choice representing trauma, and Marlon Brando's iconic Stanley Kowalski reinforcing masculinity in A Streetcar Named Desire.