- Actor Allusion:
- During season three, Ken Marino from The State made an appearance. He's best known for his character Louie, The Guy Who Says His Catchphrase Over and Over Again. After successfully cock-blocking him, Hank tells him to make a cup of tea and "dip his balls in it".
- When Hank's lawyer makes him wear a suit for his court hearing, he notes that he "looks like an FBI agent." A double Shout-Out when Karen responds he looks like a "brooding and comely FBI agent."
- Charlie Runkle and Evan Handler are Jewish.
- In the Season 6 opener, Hank tells Karen that she looks "like a Sascha or a Pascha, definitely an -ascha." Karen is played by actress Natascha McElhone.
- Hank continually refers to Marcy as "Smurf" (usually "Cokey Smurf"). Pamela Adlon played Kelly on The Facts of Life; during the episode "Small But Dangerous," Jo refers to Kelly as "Smurf."
- Content Leak: The pilot episode was leaked before the series made its debut.
- Dawson Casting:
- Mia, whose age of 16 is an important plot point, is played by an actress who is in her early 20s, and visibly so. The fact that she looks much older is also an important plot point. It also doesn't help that Madeline Zima is 5'8".
- Averted with Madeleine Martin (Becca), notable given this show is NOT kid friendly.
- Defictionalization: You can read Hank's book God Hates Us All for yourself. The plot of the book hardly has anything to do with that of the series, though.
- Genius Bonus: The show is filled with classic rock and heavy metal references. In fact, Hank's books South of Heaven, Seasons in the Abyss, and God Hates Us All are named after albums from American thrash metal band Slayer.
- Name's the Same: This was grounds for a lawsuit by the band Red Hot Chili Peppers, as the show shares its name with an album and a song by the band. The case did not reach a courtroom as the term existed since the seventies.
Trivia / Californication