When discussing movie casting, Cyril tells Malory there is a "finite supply of Vaseline in the universe". This is a reference to the old trick of putting petroleum jelly on a movie camera lens to soften the light and make an older actress appear younger.
When Ray, Pam, and Cheryl are caught in Rona's apartment, they are wearing Archer's spy gear distributed amongst the three of them. Ray has the gloves, Pam has the tactleneck, and Cheryl has the pants.
First time the recurring joke involving Archer's damaged hearing ("Mawp!") is heard.
Numerous "Krieger Bots" have served as Krieger's lab assistants, test dummies, and sniper decoys.
While Malory discusses the movie script with Cyril, the page she holds up describes a darts match which plays out exactly as the ISIS team darts match did in the opening scene of Tragical History (2011).