John Mariano was born on August 5, 1960 in Astoria, New York, USA. He is an actor.
CSI: Miami
as Davey Penrod
The Sopranos
as Ralph Giorgio
Desperate Housewives
as Oliver Preston
ER
as Leonard Apfenbach
JAG
as Enrico Amati
Young Sheldon
as Envelope (voice)
The West Wing
as Bertram
It's Always Sunny in Philadelphia
as Johnny
Married... with Children
as Pete
Batman: The Animated Series
as Additional Voices (voice)
Family Matters
as Ring Announcer
Animaniacs
as Bobby (voice)
Numb3rs
as Derrick Lamberg (uncredited)
Renegade
as Tom
L.A. Law
as Chet
Night Court
as Travis Gerkin
Hey Arnold!
Batman Beyond
as Driver (voice)
Matlock
as Eddie Leeds
Stars in the House
as Self
