Actor
John Mariano
August 5, 1960 · Astoria, New York, USA
John Mariano was born on August 5, 1960 in Astoria, New York, USA. He is an actor.
Notable work
7.3Babylon (2022)
as Master of Ceremonies
8.7The Sopranos (1999)
as Ralph Giorgio
8Young Sheldon (2017)
as Envelope (voice) and as Richard Feynman (voice)
7.9Desperate Housewives (2004)
as Oliver Preston
8.6Batman: The Animated Series (1992)
as Additional Voices (voice)
7.7CSI: Miami (2002)
as Davey Penrod
8.3It's Always Sunny in Philadelphia (2005)
as Johnny
7.7Married... with Children (1987)
as Pete
7.4Justice League: War (2014)
as Ice Cream Vendor (voice)
8Hey Arnold! (1996)
cast and as Zamboni Jones / Banana Guy / Shady Guy (voice) and as Vic / Morrie (voice)
6.3Pride and Glory (2008)
as Task Force Lieutenant
7.8ER (1994)
as Leonard Apfenbach
Often works with
Jeff Bennett
4 titles together
Batman: The Animated Series, Animaniacs, Pinky and the Brain
Kevin Conroy
3 titles together
Batman: The Animated Series, Batman Beyond, Batman: Mystery of the Batwoman
Tress MacNeille
3 titles together
Hey Arnold!, Animaniacs, Pinky and the Brain
Maurice LaMarche
3 titles together
Hey Arnold!, Animaniacs, Pinky and the Brain
Frank Welker
3 titles together
Animaniacs, Pinky and the Brain, Curious George
Lance Barber
2 titles together
Young Sheldon, It's Always Sunny in Philadelphia
Full filmography · 73
Bookie
as Ed (O.C.) (voice)
20236.9
The Offer
as Anthony Spirachio
20228
Big Shot
as Gino
20217.9
Bob Hearts Abishola
as Gene
20197.5
Young Sheldon
as Envelope (voice) and as Richard Feynman (voice)
20178
Random! Cartoons
as Leonardo DaVinci (voice)
2008
Transformers: Animated
as Dirtboss (voice)
20078
It's Always Sunny in Philadelphia
as Johnny
20058.3
The Inside
as Keyes
20057.3
Numb3rs
as Derrick Lamberg (uncredited)
20057
Desperate Housewives
as Oliver Preston
20047.9
The Batman
as Number 1 (voice)
20048