John Mariano
- They Killed Pedro
2026 CIA Agent (Voice)
- Stuart Fails to Save the Universe
2026 Giorgio
- Pinocchio and the Water of Life
2025 Pierott (voice)
- Bookie
2023 Ed (O.C.) (voice)
- Babylon
2022 Master of Ceremonies
- The Offer
2022 Anthony Spirachio
- Big Shot
2021 Gino
- Bob Hearts Abishola
2019 Gene
- Spinning Man
2018 Jack
- Young Sheldon
2017 Envelope (voice)
- Dancer and the Dame
2015 Murray
- Justice League: War
2014 Ice Cream Vendor (voice)
- Super Hybrid
2011 (Additional Voices)
- Pride and Glory
2008 Task Force Lieutenant
- Random! Cartoons
2008 Leonardo DaVinci (voice)
- Transformers: Animated
2007 Dirtboss (voice)
- Jesus, Mary and Joey
2006 Carlo
- Curious George
2006 Additional Voices (voice)
- Cattle Call
2006 District Attorney
- Numb3rs
2005 Derrick Lamberg (uncredited)
- The Inside
2005 Keyes
- It's Always Sunny in Philadelphia
2005 Johnny
- Desperate Housewives
2004 Oliver Preston
- Father of the Pride
2004 Martin Scorsese (voice)
- The Batman
2004 Number 1 (voice)
- Batman: Mystery of the Batwoman
2003 Additional Voices (voice)
- CSI: Miami
2002 Davey Penrod
- The Legend of Tarzan
2001 Joey Marks (voice)
- Philly
2001
- An American Tail: The Mystery of the Night Monster
1999 Twitch (voice)
- Cool Crime
1999 Roberto
- Animaniacs: Wakko's Wish
1999 Bobby / Gas Station Attendant (voice)
- Batman Beyond
1999 Driver (voice)
- The Sopranos
1999 Ralph Giorgio
- The West Wing
1999 Bertram
- With Friends Like These
1998 Arthur
- Dharma & Greg
1997 Man (uncredited)
- The New Batman Adventures
1997 Vincenzo (voice)
- Veronica's Closet
1997 Chris
- Pacific Blue
1996 Armand Miller
- Hey Arnold!
1996
- Superman: The Animated Series
1996 Agent #3 (voice)
- Pinky and the Brain
1995 Robert (voice)
- Caroline in the City
1995 Maitre D'
- JAG
1995 Enrico Amati
- The Watcher
1995
- The Sylvester & Tweety Mysteries
1995 Commandant (voice)
- Weird Science
1994
- ER
1994 Leonard Apfenbach
- The Tick
1994 Sewer Czar (voice)
- The Louie N' Louie Show in: A Seedy Situation
1993 Bubbles
- Animaniacs
1993 Bobby (voice)
- Batman: The Animated Series
1992 Additional Voices (voice)
- Renegade
1992 Tom
- Silk Stalkings
1991
- Toxic Crusaders
1991
- Where's Wally?
1991 (voice)
- Blossom
1990
- Fender Bender 500
1990 Wally Gator (voice)
- Captain Planet and the Planeteers
1990 Pepe / Paolo (voice)
- Family Matters
1989 Ring Announcer
- Booker
1989 Tommy Miranda
- China Beach
1988
- Married... with Children
1987 Pete
- Tough Guys
1986 Teller #2
- L.A. Law
1986 Chet
- Matlock
1986 Eddie Leeds
- Night Court
1984 Travis Gerkin
