Turns out, playing the one who knocks is a great way to notch up some Emmy votes.

“Breaking Bad” star Bryan Cranston made Emmy history when he became the first actor from a cable series to receive three consecutive lead actor in a drama trophies for his work playing Walter White on the AMC series.

He’d eventually clock in at four total wins in that category, plus two more for best drama series due to his producer credit. The iconic character has also twice made guest appearances in the “Bad” universe — 2019’s “El Camino: A Breaking Bad Movie” and now, alongside Aaron Paul, appearing in the final season of “Better Call Saul,” as that was when the Bob Odenkirk-led prequel finally caught up to the events in “Bad.” Adding to and re-creating moments from “Bad,” these now-guest parts filled in details of this notoriously scrupulous world.

Here, Cranston...