Warning: This contains spoilers from the March 9 episode ofThe Flash, “Impulsive Excessive Disorder.”
The Flash’s midseason premiere contained a delightful Easter egg referencing another Arrowverse show.
If the show returns for an eighth season, Faison will likely take on a bigger role.

Donald Faison as Booster Gold on ‘Legends of Tomorrow’.Bettina Strauss/The CW
According to showrunner Eric Wallace, it came together pretty easily while they were editing the midseason premiere.
“It was just a kind of a fun coincidence,” he tells EW.
And the head of post for our show and forLegendsis the same person, Geoff Garrett.

Jordan Fisher as Bart Allen and Jessica Parker Kennedy as Nora West-Allen on ‘The Flash’.Shane Harvey/The CW
I’m big Booster Gold fan, and I went, ‘Hey, have they cast that person yet?
I have a crazy thought.
Wallace continues: “So we made a few calls.
I called upPhil [Klemmer], the showrunner ofLegends, pitched him the idea.
After he stopped laughing so hard he’s like, ‘Of course, definitely do that.’
He was into it.
Next thing you know, it’s in the show.
It all happened in literally 24 hours.
It was hilarious.”
But that doesn’t mean all of the show’s timey-wimey problems have been resolved.
“It’s all connected,” Wallace teases.
There’s a reason in 803 that Iris is at a train station with Deon talking about timey-wimey things.
Look at those things.
“We had a master plan and ‘Armageddon’ was only part one of three parts.
Team Flash is about to go to through some very intense times.
I’m not kidding.
It’s about to get hardcore.”
The Flashairs Wednesdays at 8 p.m. on The CW.