Vice President Joe Biden made a cameo appearance on the latest episode of Law and Order: SVU Wednesday night. Biden’s guest appearance was the crown jewel of an episode already overstuffed with delightful pop culture touchstones. Henry Thomas, the actor who once upon a time played Elliott in E.T.: The Extraterrestrial, played a man found guilty of rape then later cleared on flawed DNA evidence — only to be suspected in a more violent crime later on.