Episodes directed by actors in the series
Looking at the Wikipedia episode list in order to post an answer on a different thread, some stuff caught my eye, and I don't know about the rest of you, but I thought it was cool that many episodes were directed by actors who appeared on the show!!
- Thanksgiving: Jorma Taccone - "Taylor", Coral Palms Fun Zone manager (and of course he's from The Lonely Island)
Charges and Specs: Akiva Schaffer - "Brett Booth", officer blinded in one eye by Jake at the academy (he's also from The Lonely Island)
Jake and Sophia, Det. Dave Majors, The Oolong Slayer, Halloween III, Coral Palms Pt. 1, Skyfire Cycle, Your Honor, The Big House Pt. 2, The Crime Scene, Pimemento, The Takeback: Michael McDonald - "Adam Jarver", Wunch's nephew/fake nemesis
He Said, She Said: Stephanie Beatriz - Rosa Diaz, detective/private investigator (I know you all know this, but for the sake of formatting consistency)
The Bimbo: Joe Lo Truglio - Charles Boyle, detective (thank you for bearing with me)
Return of the King: Melissa Fumero - Amy Santiago, detective/sergeant/chief (just one more)
Dillman: Kyra Sedgwick - Madeline Wunch, deputy chief/commissioner of the NYPD
Did I miss anyone?