Macon Blair confirmed that It's NOT Actually Peter Dinklage Under The Makeup As Toxie, "It's not Peter, It's a tiny British actress named Luisa Guerreiro. She's Portuguese. A complete badass. 110 degrees, 30 pounds of foam makeup. Motors all over her face to move the eyebrows and stuff like that. What she did was, and this is why I get so excited talking about it, Peter performed the whole movie on videotape as Toxie. Just himself. But making the choices, delivering the lines, physical choices, how fast he's running all of it. There's a video version of him just in a white room playing the whole movie. Luisa takes those tapes home, memorizes them, and studies them. She plays Teletubbies and Oompa Loompas. She's like a physical performer. So, she's studying his gait and his timing, his pauses, his line delivery, all of that. She replicates that on set, and then Peter, six months later, comes back and reinterprets the voice based on what she did. So, Toxie is actually Luisa playing Peter with Peter's voice playing Luisa."
