Yes, there is a post-credits scene.

Invincible season 3 finale ending explained as Mark Grayson defeats Conquest, Atom Eve survives, and darker threats rise after the Invincible War.

Speaking of which, the Invincible season 4 trailer also shows the return of Omni-Man (J.K. Simmons), who betrays his fellow Viltrumites to form an alliance with Allen the Alien (Seth Rogen). Together, ...

From the very start of Invincible, the voice cast has been one of the most vital elements, and Season 4 will have all of the ...