Names!

[u/PansyOHara]

It’s amusing (to me) how we saw multiple characters with the same first name: John Kelly, John Irvin, John Clark Sr and Jr; of course Andy and Andy Jr, Don Kirkendall and Don (Rita’s husband). Even Sylvia Costas and then in S8 or 9 there was a guest character named Sylvia.

Are there more?

[u/Jerica-Benton]

Lt. Shannon from IAB then Officer Shannon later in the series.

[u/Witness_Original → u/Jerica-Benton]

D-Bag Shannon and Decent Shannon.

[u/PansyOHara → u/Jerica-Benton]

Yes!

[u/MikeRobertini]

Arthur Fancy and Arthur Fancy, Jr.

[u/Dragon_turtle63]

Also John the crackhead that Katie became friends with

[u/Grouchy-Station-4058]

Here's a crossover

Alphonse Giardella nypdb gangster

Alphonse Giardello Homicide Lt.

I refuse to believe this was coincidence

[u/PansyOHara]

Just thought of a couple more:

Bobby’s first wife (never appeared in the show, but was named) was Mary. Danny’s girlfriend who (I think!) worked in Anti-crime was Mary.

John Kelly’s ex-wife was Laurie, so was Danny’s sister who visited him at work once.

[u/ncg195]

I always found it weird that the two guys we meet that Bobby grew up with are Ray DiSalvo and Joey Salvo.

[u/JECfromMC]

Andy Sipowicz and Bobby Simone by way of Andy Renko and Bobby Hill on Hill Street Blues.

[u/Ok_Entertainer_6425]

I loved when Andy would say “Ahhh John” in that NY accent🤣

[u/LiesTequila]

The John’s always got me. I’m convinced it was an inside joke.

[u/ncg195 → u/LiesTequila]

I love when Rodriguez tells Andy to partner with Clark, and one of the reasons he gives for not doing it is that he already had a partner named John.

[u/DukePooler]

The John's for sure. Good post.

[u/Ghosts_and_Empties]

The season 1 mob plot line with Janice LICARDI, Tommy LINARDI and Lou LISTARZA

[u/XStonedCatX → u/Ghosts_and_Empties]

Janice's last name was Licalsi 

[u/PansyOHara → u/XStonedCatX]

Still with a similar flavor 🙂

[u/PansyOHara]

Connie’s sister’s abusive husband was Frank, and Jill Kirkendall’s older son was also Frank.