Bryan Cranstondug up some holes … and buriedShia LaBeoufin the process.

The brutal moment happened during his Esquire sit-down with ‘Malcolm in the Middle’ costar Frankie Muniz … when Muniz got candid about a major career fork in the road. He revealed he was locked in to star in “Holes” before “Agent Cody Banks” got the green light — forcing him to choose.

“I immediately picked Agent Cody Banks,” Muniz said … admitting people around him were pushing him toward “Holes” because it was “a little more dramatic.”

The role, of course, went to LaBeouf — and Muniz didn’t shy away from the what-if.

“And Shia LaBeouf ended up doing it, which I think kind of really catapulted his movie career,” he said, adding he still wonders how his life might’ve changed: “Would I have been taken more seriously as an actor?”

That’s when Cranston swooped in with a line that turned reflection into straight-up roast.

“You could have ended up with Shia LaBeouf’s life,” Cranston quipped … before doubling down, “Keep that one in. Shia, get some help.”

Yeah … he went there — and to think they were only sitting down to revisit unforgettable moments from ‘Malcolm.’

Muniz was clearly just talking sliding-doors Hollywood decisions … but Cranston took the alley-oop and slammed it with a not-so-subtle jab at Shia’s well-documented ups and downs that have repeatedly put his career under scrutiny.