Amazon Prime Video has renewed 'Invincible' for a fifth season, ahead of its Season 4 debut in 2026. Matthew Rhys has joined the voice cast.

The adult-animated superhero series "Invincible" is slated for a fifth season and Welsh actor Matthew Rhys will join the cast, Prime Video announced Thursday.

The R-rated animated series, based on Robert Kirkman 's action-packed comic book, has officially been renewed for season 5 — well before season 4 is set to premiere on Amazon's Prime Video in 2026. And according to a new announcement video, which shows cast members celebrating in a voiceover booth, they've already finished recording it.