Ben Feldman Ben Feldman

Drop Dead Diva's Ben Feldman has joined the cast of AMC's Mad Men, Deadline reports.

Feldman, who portrays guardian angel Fred on the Lifetime series, will play a new employee at Sterling Cooper Draper Pryce. He'll make his debut in this Sunday's episode, airing at 10/9c on AMC.

Mad Men Creator: Megan has power over Don

The news of Feldman's casting coming just days before his debut is just more proof at how much of a spoilerphobe series creator Matthew Weiner is.

Mad Men returned last week to 3.5 million viewers. While those aren't Walking Dead numbers — that season finale attracted 8 million total viewers — it's still a series high for the AMC period drama.