John Mariano

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

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Known For

Bob Hearts Abishola

2019 • as Gene

The Sopranos

1999 • as Ralph Giorgio

It's Always Sunny in Philadelphia

2005 • as Johnny

CSI: Miami

2002 • as Davey Penrod

Young Sheldon

2017 • as Envelope (voice)

Young Sheldon

2017 • as Richard Feynman (voice)

Filmography

2025

Pinocchio and the Water of Life

as Pierott (voice)

Movie - Released: 12/18/2025

2023

Bookie

as Ed (O.C.) (voice)

TV - Released: 11/30/2023

2022

Babylon

as Master of Ceremonies

Movie - Released: 12/22/2022

The Offer

as Anthony Spirachio

TV - Released: 4/28/2022

2021

Big Shot

as Gino

TV - Released: 4/16/2021

2020

Stars in the House

as Self

TV - Released: 3/16/2020

2019

Bob Hearts Abishola

as Gene

TV - Released: 9/23/2019

2018

Spinning Man

as Jack

Movie - Released: 4/6/2018

2017

Young Sheldon

as Envelope (voice)

TV - Released: 9/25/2017

Young Sheldon

as Richard Feynman (voice)

TV - Released: 9/25/2017

2015

Dancer and the Dame

as Murray

Movie - Released: 2/22/2015

2014

Justice League: War

as Ice Cream Vendor (voice)

Movie - Released: 1/21/2014

2011

Super Hybrid

as (Additional Voices)

Movie - Released: 1/28/2011

2008

Pride and Glory

as Task Force Lieutenant

Movie - Released: 9/9/2008

Random! Cartoons

as Leonardo DaVinci (voice)

TV - Released: 12/6/2008

2007

Transformers: Animated

as Dirtboss (voice)

TV - Released: 12/26/2007

2006

Jesus, Mary and Joey

as Carlo

Movie - Released: 1/1/2006

Dizzy & Bop's Big Adventure: The Great Music Caper

as (voice)

Movie - Released: 1/1/2006

Curious George

as Additional Voices (voice)

Movie - Released: 2/10/2006

Cattle Call

as District Attorney

Movie - Released: 6/1/2006

2005

Numb3rs

as Derrick Lamberg (uncredited)

TV - Released: 1/23/2005

The Inside

as Keyes

TV - Released: 6/8/2005

It's Always Sunny in Philadelphia

as Johnny

TV - Released: 8/4/2005

2004

Desperate Housewives

as Oliver Preston

TV - Released: 10/3/2004

Father of the Pride

as Martin Scorsese (voice)

TV - Released: 8/31/2004

The Batman

as Number 1 (voice)

TV - Released: 9/11/2004

2003

Batman: Mystery of the Batwoman

as Additional Voices (voice)

Movie - Released: 10/21/2003

2002

CSI: Miami

as Davey Penrod

TV - Released: 9/23/2002

2001

The Legend of Tarzan

as Joey Marks (voice)

TV - Released: 9/3/2001

Philly

TV - Released: 9/25/2001

The Bernie Mac Show

TV - Released: 11/14/2001

2000

18 Wheels of Justice

TV - Released: 1/12/2000

1999

An American Tail: The Mystery of the Night Monster

as Twitch (voice)

Movie - Released: 10/6/1999

Cool Crime

as Roberto

Movie - Released: 3/12/1999

Animaniacs: Wakko's Wish

as Bobby / Gas Station Attendant (voice)

Movie - Released: 12/20/1999

Batman Beyond

as Driver (voice)

TV - Released: 1/10/1999

The Sopranos

as Ralph Giorgio

TV - Released: 1/10/1999

The West Wing

as Bertram

TV - Released: 9/22/1999

1998

With Friends Like These

as Poker Buddy - Arthur

Movie - Released: 9/10/1998

1997

Toxic Crusaders: The Movie

Movie - Released: 3/4/1997

Dharma & Greg

as Man (uncredited)

TV - Released: 9/24/1997

The New Batman Adventures

as Vincenzo / Bodyguard (voice)

TV - Released: 9/13/1997

Veronica's Closet

as Chris

TV - Released: 9/25/1997

1996

Pacific Blue

as Armand Miller

TV - Released: 3/2/1996

Hey Arnold!

TV - Released: 10/7/1996

The Real Adventures of Jonny Quest

TV - Released: 8/26/1996

Superman: The Animated Series

as Agent #3 (voice)

TV - Released: 9/6/1996

Superman: The Animated Series

as Short Order Cook (voice)

TV - Released: 9/6/1996

Hey Arnold!

as Zamboni Jones / Banana Guy / Shady Guy (voice)

TV - Released: 10/7/1996

Hey Arnold!

as Vic / Morrie (voice)

TV - Released: 10/7/1996

1995

Pinky and the Brain

TV - Released: 9/9/1995

Caroline in the City

as Maitre D'

TV - Released: 9/21/1995

JAG

as Enrico Amati

TV - Released: 9/23/1995

The Watcher

TV - Released: 1/17/1995

The Sylvester & Tweety Mysteries

as Stanislovsky (voice)

TV - Released: 9/9/1995

The Sylvester & Tweety Mysteries

as Commandant (voice)

TV - Released: 9/9/1995

Pinky and the Brain

as Head Gendarm (voice)

TV - Released: 9/9/1995

Caroline in the City

as Johnny

TV - Released: 9/21/1995

1994

The Warner's 65th Anniversary Special

as Guenther Hundhosen

Movie - Released: 5/23/1994

Weird Science

TV - Released: 3/5/1994

as Leonard Apfenbach

TV - Released: 9/19/1994

1993

The Louie N' Louie Show in: A Seedy Situation

as Bubbles

Movie - Released: 5/17/1993

Animaniacs

as Bobby (voice)

TV - Released: 9/13/1993

1992

Batman: The Animated Series

as Additional Voices (voice)

TV - Released: 9/5/1992

Renegade

as Tom

TV - Released: 9/19/1992

1991

Silk Stalkings

TV - Released: 11/7/1991

Toxic Crusaders

TV - Released: 1/21/1991

Where's Wally?

as (voice)

TV - Released: 9/14/1991

1990

Blossom

TV - Released: 7/5/1990

Wake, Rattle, and Roll

TV - Released: 9/17/1990

Fender Bender 500

as Wally Gator (voice)

TV - Released: 9/17/1990

1989

Family Matters

as Ring Announcer

TV - Released: 9/22/1989

Booker

TV - Released: 9/24/1989

1988

China Beach

TV - Released: 4/26/1988

1987

Married... with Children

as Pete

TV - Released: 4/5/1987

1986

L.A. Law

as Chet

TV - Released: 9/15/1986

1984

Night Court

as Travis Gerkin

TV - Released: 1/4/1984