Simplify the following text for a Grade 12 native English-speaking person.
Original: The veteran television actor Ron Glass ( Barney Miller , All in the Family ) , has said that until Firefly , he had not thought about a science-fiction western role but he fell in love with the pilot script and the character of Shepherd Book .
Simplified: Veteran television actor Ron Glass has said that until Firefly , he had not experienced or sought a science-fiction or western role but he fell in love with the pilot script and the character of Shepherd Book .