People
John Mainieri
Known for Actor / Cast, with 23 unique credited titles in this database.
This profile page groups all matching credits we found for John Mainieri across cast, directing, and producing roles so readers can move between related titles from a single hub.
Why This Profile Matters
John Mainieri is treated on OnlySynopsis as a connection hub, not a biography page, so the emphasis stays on verified credits and navigable title relationships. In this dataset the profile is primarily useful for Actor / Cast, with 23 unique linked titles currently surfaced. That balance currently breaks down into 23 cast credits, which gives visitors a quick sense of why this person matters in the library.
How This Profile Is Organized
OnlySynopsis builds people pages from credited appearances and roles already stored in the title library. That means these pages act as navigation hubs for readers, showing where a person appears across acting, directing, and producing work without inventing extra biography details the site cannot verify.
Frequent Collaborators
Appeared In (23)
Every acting or cast credit we found for this person.
- Blue Bloods — The Blue Templar (Episode)
- Boardwalk Empire — The Age of Reason (Episode)
- Instinct — Big Splash (Episode)
- Instinct — Owned (Episode)
- Instinct — Bad Actors (Episode)
- Instinct — Grey Matter (Episode)
- Instinct — One-of-a-Kind (Episode)
- Instinct — Ancient History (Episode)
- Instinct — Heartless (Episode)
- Instinct — Pilot (Episode)
- Instinct — Broken Record (Episode)
- Instinct — Finders Keepers (Episode)
- Instinct — Stay Gold (Episode)
- Instinct — Tribal (Episode)
- Instinct — Blast From the Past (Episode)
- Instinct — Bye Bye Birdie (Episode)
- Cars 2 (Movie)
- Not Fade Away (Movie)
- The Normal Heart (Movie)
- Trainwreck (Movie)
- When in Rome (Movie)
- Wonder Wheel (Movie)
- Instinct (Tvseries)
