David Harbour asked a question many fans have wondered for years: how did he, of all people, become Chief Jim Hopper on Stranger Things? He put it plainly on the Happy Sad Confused podcast: "I’m pretty sure I was second choice, and I don’t know who I was second choice to. Maybe I was third choice? But would you please answer the question of how I came to be cast as Chief Hopper, and who had to say no to allow me to do that wonderful, incredible role."
The answer, the Duffer Brothers said on the same episode that aired May 18, was Billy Crudup. "No, it was Billy Crudup, which is a very different — like, everything happens for a reason, right? So it’s like, once it kind of clicks into place … But yeah, Billy Crudup passed. I don’t think he was doing much TV at the time," Matt Duffer told host Josh Horowitz on the show.
The detail matters because Hopper is not a peripheral part. Harbour played Chief Hopper for all five seasons of Stranger Things after the series premiered on Netflix in 2016, and the role helped launch him to stardom. Stranger Things concluded its five-season run in 2025, and the casting story now joins the lore of how one role transformed an actor’s career.
Ross Duffer filled in the mechanics. He said a casting director suggested Harbour could be right for the part, Harbour went in to read and "he just did one take. We weren’t even there, we just saw the tape, and it was just so clear, instantly: This is Hopper. And we just cast him right then and there." Ross later added, "I can’t believe he wants us to say this. I believe we did go out to someone prior to David. Someone who had been less of—just a supporting actor."
That sequence — a higher-profile actor passes, a casting director spots another possibility, an actor reads and nails it in a single take — is the exact origin story the brothers described on Horowitz’s show. The episode made plain that Harbour’s casting was both circumstantial and decisive: he was not the first name on the list, and once the Duffers saw his tape the choice was immediate.
The backstory carries a second, human weight. Harbour and Crudup already knew each other: they met on Broadway in 2006 while starring in The Coast of Utopia and worked together again on the 2011 film Thin Ice. Crudup later resurfaced on television, becoming a series regular on Apple TV’s The Morning Show and winning two Emmy Awards for that work. Those facts make the switch from one actor to another less a mystery than the closing of a small circle among stage and screen colleagues.
Asked on the podcast why the casting unfolded that way, Harbour’s own remark — that he was likely the second or perhaps even third choice — sits beside the Duffers’ recollection that Crudup was the primary option and that Harbour’s single take made the decision obvious. The tension is not between memory and motive so much as between the private, messy mechanics of casting and the neat myth fans prefer: that roles belong to the people who seem destined to play them.
In the end, the public result is undisputed. Stranger Things premiered on Netflix in 2016, Harbour portrayed Hopper across five seasons, and the part propelled him into wider recognition. The Duffer Brothers’ account on Happy Sad Confused — relayed by Josh Horowitz and confirmed by both Matt and Ross Duffer in the May 18 episode — answers Harbour’s question: Billy Crudup was the initial choice and passed, a casting director flagged Harbour, he read and "did one take," and the Duffers cast him immediately.
That is the kind of practical gamble that changes careers. For Harbour, a one-take reading turned a potential second-choice fate into the central role of a flagship series; for audiences, it produced the Hopper they came to know. The casting story closes the loop the actor himself asked about and, in doing so, underlines how small shifts in timing and availability can alter television history.
