"Impending Doom" is the 133rd issue of The Walking Dead comic book series, published by Image Comics. It is the first chapter of the "Whispers Into Screams" storyline. The story was written by Robert Kirkman with artwork by Charlie Adlard, inks by Stefano Gaudiano, and grey-tone coloring highlights by Cliff Rathburn. It was edited by Sean Mackiewicz. The issue was published with an October, 2014 cover date and carries a cover price of $2.99 per copy (US).
This is the first appearance of Joshua, who is one of the Whisperers. He makes two appearances in the series in total. He appears next in issue #134.
This is the first appearance of Lydia, who is one of the Whisperers. She becomes a regularly featured character in the series. She appears next in issue #134.
This issue makes reference to the Saviors. The group is still active and is being led by Dwight.