Among the names Mira gives Shawn from her long list of ex-boyfriends are "Gay Andy" and "Guru Anupam" - a reference to series writers Andy Berman and Anupam Nigam.
Shawn's excuse to not go rock climbing with Mira is that him and Gus got a call about a ghost in a ballroom. This was the circumstances of the first ghost hunt in Ghostbusters (1984). Gus' dad, introduced in the previous episode is played by Ernie Hudson, who was also one of the Ghostbusters.
After Shawn finds out that Gus got married to Mira, Gus tells him that when when he gets married for real that Shawn would be there. In real life when Dule Hill got married for the second time James Roday Rodriguez was there.
Spot the pineapple: while golfing Shawn is wearing a pink t-shirt with a little pineapple logo.
Telma Hopkins and Obba Babatundé who play Mira's parents costarred on the sitcom Half & Half (2002) as Mona's divorced parents Phyllis and Charles Thorne.