This mini series is set within the universe of The Walking Dead comic books, and not AMC's television series.
Danai Gurira, the actress who plays Michonne in the AMC series, does not lend her voice for Michonne in the TellTale game.
This mini-series is set between issues #126 and #139 of The Walking Dead graphic novel. During these issues Michonne has departed from Rick's group, and this series shows what's happened to her within that time.
This mini-series is considered canon to The Walking Dead graphic novels.
Samira Wiley (Poussey Washington of Orange Is The New Black), voices the character of Michonne.