It's not necessary. But it's highly recommended. The Suicide Squad is the introduction to the character of Peacemaker as well as Harcourt and Economos. The show takes place shortly after The Suicide Squad ends and there are several references to it throughout.
Picking up where The Suicide Squad (2021) left off, Peacemaker returns home after recovering from his encounter with Bloodsport - only to discover that his freedom comes at a price.
What is the Peacemaker theme song?
Do Ya Wanna Taste It by Wig Wam
What genre is Peacemaker?
Action, Adventure, Comedy, Crime, Fantasy, and Sci-Fi
How many awards has Peacemaker been nominated for?