Jon Hamm and John Slattery know how to play “Mad Men.”
The actors hilariously reenacted James Kennedy and Tom Sandoval’s “Vanderpump Rules” reunion fight on “Watch What Happens Live” Tuesday.
Host Andy Cohen called the “Clubhouse Playhouse” segment the “role of a lifetime” before Hamm, 52, and Slattery, 60, took the stage.
The former kicked off the confrontation, accusing the latter of “always” being an “opportunist” in an English accent.
“Am I supposed to have an English accent?” Slattery asked as Hamm continued hurling insults at him.
After Hamm called his former co-star a “worm with a mustache” and a “poo poo head,” fans — and Kennedy himself — praised his performance on social media.
“Jon Hamm. YOU LEGEND.😂🙌,” the DJ, 31, captioned an Instagram upload, calling the moment “crazy” on his Story.
Sandoval, for his part, has not commented on the viral video.
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“How does Jon Hamm sound exactly like James Kennedy???????” one Twitter user asked. “Emmy immediately.”
Another added that the “Top Gun: Maverick” star “nailed it,” noting, “Not sure Slattery has ever seen the show.”
Hamm, however, is a proud viewer of the Bravo reality series, proclaiming on the “Today” show Monday that he is a “Vanderpumper.”
As for the “Real Housewives” franchise, the Golden Globe winner told Savannah Guthrie that he is “a Jersey man” as well as “a Beverly Hills-ian.”
Hamm concluded by calling reality TV a “vortex” that is going to “get us all” in the end.
Other A-listers, from Kaley Cuoco to Amy Schumer, have emerged as “Pump Rules” fans since Sandoval made headlines in March for cheating on longtime girlfriend Ariana Madix with Raquel Leviss for months.
The real-life altercation between the bar owner and Kennedy, which almost came to blows, took place during the show’s three-part Season 10 reunion.
Kennedy has since dropped merch in honor of his beloved “worm with a mustache” insult.
