As is the case with all of his animations, Joe Cappa voices most of the characters on Haha, You Clowns . However, those who tuned in when the new Adult Swim show premiered on the 2025 TV schedule heard another familiar voice alongside the creator: Oscar-nominated actress June Squibb. So, how did that major (and random) cameo happen?

I was shocked at the number of cameos that actually popped up when I was streaming Haha, You Clowns with my HBO Max subscription . I figured other fans were likely curious like myself about how the show got so many big names on board. As it turns out, even Cappa himself was surprised about the talent who agreed to sign on, telling CinemaBlend,

I don't know who at Adult Swim has this magic of getting us really great talent, but they do. I don't know wh

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