Adam Ruins Himself is the finale episode of Season 3 and Adam Ruins Everything.
Adam battles with self-doubt over how biases affect the show; he shares the shortcomings of story-telling and the influence of advertising on the series' integrity.
- David Dunning as Himself
- Pete Holmes
- Bob Bancroft as Limo Driver
- Ariana Guerra as Adriana
- Richie Moriarty as John Yudkin
- Susan Song as Scientist
- Christopher Rivas as Cool Beer Guy
- Brandon J. Sornberger as Ancel Keys
- This was confirmed to be the final episode of Adam Ruins Everything.