With a time jump confirmed, Andrew Lincoln finally addressing that he’s leaving the show, and a premiere date of October 7th set, Comic-Con had one more big reveal about The Walking Dead: Season 9 to unleash – the Whisperers!
After a “whispering walker” could be heard in the Season 9 trailer that screened at SDCC, it was announced that Samantha Morton (Minority Report, Fantastic Beasts and Where to Find Them) would be playing the leader of the Whisperers, Alpha.
Source: IGN.com The Walking Dead: The Whisperers Explained