The actor will play a fictitious version of himself in the series, written by Friends co-creator David Crane and Jeffrey Klarik.
Discussing the script, LeBlanc told TV Choice: "A joke is not just a joke. It's right on story, it furthers character development, and everything seems to have more than one function. Really clean, no flab [and] it moves along well."
He added that the opportunity to work with Crane and Klarik had convinced him to take part in the project.
"The appeal of doing this was to work with these two writers again," he explained. "I mean, to have great material is really a blessing. It doesn't come around too often - at least not in my world. It just jumps off the page."
LeBlanc previously admitted that he had struggled with the lack of a studio audience on the show.
Episodes begins on January 9 at 9.30pm on Showtime in the US and will air on BBC Two in the UK.