Spoiler Alert! Do not read this unless you have watched the series finale of Billions on Showtime.

It’s the end of the road for Bobby Axelrod and his team: the drama created by Brian Koppelman and David Levien ended its seven-season run Oct. 27 with a tidy finale that keeps Axe (Damian Lewis) in the game of making money.

Here, Koppelman and Levien reflect on the finale, how the writers strike impacted production on the finale, and why they couldn’t say goodbye without including a few more pop culture analogies (like Phil Spector with River Deep!) in the episode.

Sadly, questions about Billions spinoffs were verboten.

Deadline: Most important question first: how much thought went into deciding what T-shirt Damian Lewis would wear in the series finale?

Brian Koppelman: So much thought! Early on in the show, we started thinking about how and where Axe grew up and...