Gus is once again mistaken for "Bud", from The Cosby Show. Although he didn't play Bud, he did have a small part in the show.
Lassiter usually calls Shawn and Gus by their last names "Spencer" and "Guster" but refers to them at "Shawn" and "Gus" in this episode as a reference to the fact that they are working together in this episode
Spot the Pineapple: a pineapple design can be seen on the glasses at Gus' house.
When Shawn's dad calls, Shawn answers, "Tom Wopat's office." Tom Wopat is an actor, best known as Luke Duke on The Dukes of Hazard (show).