Peter Capaldi joining 'Doctor Who' changes 'The Musketeers' character arc

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Warning: The following contains spoilers for Season 1 of BBC American's "The Musketeers." The entire season has already aired in the UK.

When Peter Capaldi was cast as the new lead in "Doctor Who," it caught a lot of people off guard. Among those were the writers of his other show, "The Musketeers," where he plays Cardinal Richelieu.

Because the writers were unaware of Capaldi's "Doctor Who" aspirations, Season 1 of the show ended with his character alive and well. However, "Doctor Who" commitments mean all other shows are out of the question, meaning the folks at "The Musketeers" had to figure out what to do.

"Come the next series the Cardinal will be dead. He'll just be gone," co-star Tom Burke tells Radio Times. "It's a great example of economic storytelling. Their new nemesis will be Rochefort, who's played by Marc Warren."

Simple and easy. Goodbye, Cardinal Richelieu. "The Musketeers" debuts Sunday, June 22 at 9 p.m. ET/PT on BBC America.
Photo/Video credit: BBC America