Overview
Derrial Book (commonly called Shepherd Book and born as Henry Evans) is a fictional character played by Ron Glass in the science-fiction/Western television series Firefly and its sequel movie, Serenity. He is a Shepherd (the literal English translation of the clerical title "Pastor", from the Latin), and provides frequent spiritual advice and perspectives for the crew of Serenity.
Production details
During production of the film Serenity, Book's first name was Meria, and it appears as such in the documentary "Re-Lighting the Firefly". However, by the time the film was completed, Joss Whedon changed his first name to Derrial, which is the way it appears in all printed official works based on Firefly.
Casting
Glass, a veteran actor well known for his role as Detective Ron Harris in the television sitcom Barney Miller, had rarely tackled the science-fiction genre and was hesitant about this role when his agent approached him. However, once he read the script he "...fell in love with it". As Glass noted:
"The thing that was galvanizing for me was the characters, so the environment was secondary. I was happy to see how Book would unfold in that kind of environment and it worked really, really well."
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