* TheDanza: In an episode telecast 01/14/75, Riikka Pitkonen plays a character named Riikka Kekkonen.
* DirectedByCastMember: Season 4 episode "The Grandmothers" was directed by Ozzie Nelson, who also plays a robbery victim in one scene.
* FanNickname: There is a gold Ford Mustang that frequently appears in stock footage and various outside scenes. Fans call it the "stalker Mustang", due to jokes about it/its owner following the guys.
* LifeImitatesArt: Kent [=McCord=] (Jim Reed) worked as a Los Angeles Reserve police officer later in life. Reserve police are volunteer or paid police, whose duties vary by jurisdiction. He's now retired.
* TheOtherDarrin: Jean Reed was played by two different actresses, and her incarnation in season seven is practically SameCharacterButDifferent. [[TheSeventies The decade]] can account for her radically different wardrobe and hairstyle choices, but also gone is the understanding Jean Reed who knew the risks and was happy anyway, until in the final episodes she almost seems to resent her husband's job.
* RealLifeRelative: Martin Milner's son did stunt motorbike riding in one episode, and his daughter guest starred in another episode. Kent [=McCord's=] son appeared once as well. And a couple lower key ones were Tim Donnelly appearing in two episodes while his brother Dennis directed a number of episodes and Bobby Troupe guest starring while his daughter worked with the scripts.
* YouLookFamiliar: Gary Crosby was a part-time regular as Officer Ed Wells on Adam-12 and appeared in three different roles (the first time as a firefighter, the second time as a publicity-happy paramedic, the third as an animal control officer in a PoorlyDisguisedPilot) in ''Franchise/{{Emergency}}''.
* Although Martin Milner did not get a full police funeral as Jack Webb did at his death, he was paid tribute by one of the LAPD bands playing at the funeral, and an End of Watch broadcast on the LAPD radio that can be heard [[https://www.youtube.com/watch?v=lI6WKJiPwCw here.]] The last line is a definite TearJerker. Many police officers also attended the funeral, having been inspired in their career choice by Martin's portrayal of Pete Malloy.
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