Shepherd noted the intensity made basic rehearsals challenging. "I remember I couldn't even do the line run.
If I do a line run, I'll go in the line run. I think we did two takes in the end," he said.
Co-host Colson Smith asked about the climactic moment where David silently screamed while holding his deceased wife. Shepherd clarified the decision was spontaneous.
"Nothing. Literally didn't say anything," he said.
When asked if he knew in advance how he would execute the moment, Shepherd detailed his approach to the script's brief instruction: "David lets out like a cry."
He said, "Well, I went, let's just see what happens. And then yeah, did the thing."
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Off-screen, Shepherd recently welcomed a daughter, Constance, with his wife Hanni, alongside his three older children. His son Reuben has also begun pursuing acting.