Giancarlo Esposito was unable to walk halfway through Season 4, so Better Call Saul had to adjust filming and use body doubles

Indiewire

Esposito broke multiple weight-bearing bones in his ankle halfway through filming the season, prompting the production team to get creative in shooting Gus Fring walking scenes late in the season. “It was a hurdle,” says co-creator Peter Gould. “Most of all, it was a hurdle for Giancarlo, because he’s a wonderful guy and he should never be injured.”

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