John Mariano was born on August 5, 1960 in Astoria, New York, USA. He is an actor.

Filmography

• Stuart Fails to Save the Universe — Giorgio
• 2026They Killed Pedro — CIA Agent (Voice)
• 2025Pinocchio and the Water of Life — Pierott (voice)
• Bookie — Ed (O.C.) (voice)
• 2022Babylon — Master of Ceremonies
• The Offer — Anthony Spirachio
• Big Shot — Gino
• Bob Hearts Abishola — Gene
• 2018Spinning Man — Jack
• Young Sheldon — Envelope (voice), Richard Feynman (voice)
• 2015Dancer and the Dame — Murray
• 2014Justice League: War — Ice Cream Vendor (voice)
• 2011Super Hybrid — (Additional Voices)
• 2008Pride and Glory — Task Force Lieutenant
• Random! Cartoons — Leonardo DaVinci (voice)
• Transformers: Animated — Dirtboss (voice)
• 2006Cattle Call — District Attorney
• 2006Curious George — Additional Voices (voice)
• 2006Dizzy & Bop's Big Adventure: The Great Music Caper — (voice)
• 2006Jesus, Mary and Joey — Carlo
• It's Always Sunny in Philadelphia — Johnny
• Numb3rs — Derrick Lamberg (uncredited)
• The Inside — Keyes
• Desperate Housewives — Oliver Preston
• Father of the Pride — Martin Scorsese (voice)
• The Batman — Number 1 (voice)
• 2003Batman: Mystery of the Batwoman — Additional Voices (voice)
• CSI: Miami — Davey Penrod
• Philly
• The Bernie Mac Show
• The Legend of Tarzan — Joey Marks (voice)
• 18 Wheels of Justice
• 1999An American Tail: The Mystery of the Night Monster — Twitch (voice)
• 1999Animaniacs: Wakko's Wish — Bobby / Gas Station Attendant (voice)
• Batman Beyond — Driver (voice)
• 1999Cool Crime — Roberto
• The Sopranos — Ralph Giorgio
• The West Wing — Bertram
• 1998With Friends Like These — Arthur
• Dharma & Greg — Man (uncredited)
• The New Batman Adventures — Vincenzo (voice)
• 1997Toxic Crusaders: The Movie
• Veronica's Closet — Chris
• Hey Arnold! — Zamboni Jones / Banana Guy / Shady Guy (voice), Vic / Morrie (voice)
• Pacific Blue — Armand Miller
• Superman: The Animated Series — Agent #3 (voice), Short Order Cook (voice)
• The Real Adventures of Jonny Quest
• Caroline in the City — Maitre D', Johnny
• JAG — Enrico Amati
• Pinky and the Brain — Robert (voice), Bobby (voice)
• The Sylvester & Tweety Mysteries — Stanislovsky (voice), Commandant (voice)
• The Watcher
• ER — Leonard Apfenbach
• The Tick — Sewer Czar (voice)
• Weird Science
• Animaniacs — Bobby (voice)
• 1993The Louie N' Louie Show in: A Seedy Situation — Bubbles
• Batman: The Animated Series — Additional Voices (voice)
• Renegade — Tom
• Silk Stalkings
• Toxic Crusaders
• Where's Wally? — (voice)
• Blossom
• Captain Planet and the Planeteers — Pepe / Paolo (voice)
• Fender Bender 500 — Wally Gator (voice)
• Wake, Rattle, and Roll
• Booker — Tommy Miranda
• Family Matters — Ring Announcer
• China Beach
• Married... with Children — Pete
• L.A. Law — Chet
• Matlock — Eddie Leeds
• 1986Tough Guys — Teller #2
• Night Court — Travis Gerkin

Appearances as themselves (1)

• Stars in the House — Self