He has also starred in commercials for brands such as Pepsi, Got Milk? and Taco Bell. He also has appeared on Justified, Open Water 2, and Jericho. In the HBO mini-series Band of Brothers, he played Sergeant Warren 'Skip' Muck. He also directed an episode of Supernatural. Richard is a regular at Supernatural conventions, alongside actors Matt Cohen and Rob Benedict. He and Rob Benedict are also co-writers of the series King of Con.