In fact, the actor wears a fat suit and prosthetics while in character.

Yes, you read that correctly.

you could watch the whole thing go downhere.

chris-sullivan

Ron Batzdorff/NBC; Allen Berezovsky/Getty Images

Sarah Paulson inAmerican Crime Story: The People v. O.J.

Simpson

Paulson loved the wig she donned to play O.J.

louie-anderson

Colleen Hayes/FX; Robin Marchant/Getty Images

emilia-clarke

Macall B. Polay/HBO; JB Lacroix/WireImage

melissa-mccarthy

Will Heath/NBC; Axelle/Bauer-Griffin/FilmMagic

naomi-grossman

Michele K. Short/FX; GP/Star Max/GC Images

neil-patrick-harris

Joe Lederer/Netflix; Roy Rochlin/FilmMagic

jeffrey-tambor

Jennifer Clasen/ Amazon Studios;

sarah-paulson

Ray Mickshaw/FX; Jason LaVeris/FilmMagic

bryan-cranston

Ursula Coyote/AMC; Frederick M. Brown/Getty Images

uzo-aduba

JoJo Whilden/Netflix; Stefanie Keenan/Getty Images

jimmi-simpson

Everett Collection; Todd Williamson/Getty Images

shannon-purser

Curtis Baker/Netflix; Neilson Barnard/Getty Images

elisabeth-moss

AMC; Paul Archuleta/FilmMagic