Jeffrey Donovan (Michael Westen) & Bruce Campbell (Sam Axe) also worked together on two episodes of Fargo (2014) as Dodd Gerhardt & Ronald Reagan respectively.
Evan! How's HankMed?
Evan R. Lawson: Forget HankMed. One word: "Spyami."
Sam Axe: "Spyami?"
Evan R. Lawson: The future #1 spy-for-hire agency in all of South Florida.
Sam Axe: Uh-huh?
Evan R. Lawson: Just imagine benches and T-shirts and coffee mugs! We're going to be rich but it's going to be amazing!
Sam Axe: Oh no, I'm going ...
During the opening montage, we see Michael boarding a tricycle-gear aircraft, but the aircraft seen flying out is a DC-3, a tail-dragger.