Shhh, let’s not even announce it. That’s probably what Universal execs must have whispered to each other when they heard that Christopher Nolan had cast Casey Affleck in his upcoming “Oppenheimer.”

The only reason we know Affleck is in Nolan’s film is due to leaked set photos which show the actor donning a brown shirt and matching tie, typical of military personnel. Whether this is a cameo or an actual supporting role is a mystery.

Consider me pleased to see Casey back at it. After winning the Oscar for his phenomenal performance in 2016’s “Manchester by the Sea,” the 46-year-old actor got #MeToo’ed and blacklisted by the industry, although he did appear, albeit briefly, in a few small-scaled indies.

“Oppenheimer” is not a small-scaled indie, it’s a big deal, it’s Christopher Nolan, and the fact that Universal never even announced Affleck’s appearance in the film, despite the mass amount of casting announcements of recent months, says a lot.

Affleck joins an already very starry cast that includes Cillian Murphy, Robert Downey Jr, Matt Damon, Emily Blunt, Florence Pugh, Rami Malek, Kenneth Branagh, Gary Oldman, Josh Hartnett and Jason Clarke.