He is a member of The Groundlings improvisational comedy theater and has guest written for Saturday Night Live.
In 2006, he argued and won a case before the California Supreme Court which expanded the rights of day laborers.
Ruf guest starred in a 2008 episode of the Comedy Central series Reno 911!
playing Kyle Overstreet, a convict who has recently been released after ten years in prison and has sworn to get revenge on the officers who put him behind bars.
Ruf was named a California Lawyer of the Year ("CLAY Award")[1] in 2019 for his work in the California Supreme Court, arguing the winning side in the groundbreaking case, Dynamex Operations West, Inc. v. Superior Court.