- In the video Mickey, Donald, Goofy: The Three Musketeers, he voices the Beagle Boys.
- The characters he voice acts seem to have the same similar scream like Johnny Bravo (Johnny Bravo), Raj (Camp Lazlo) & Clay (Xiaolin Showdown).
- He voices in the video game The Legend of Spyro: A New Beginning as Cyril and Sparx's father.
- In the Kingdom Hearts series, he does the voices of the the Mayor of Halloween Town, Barrel, Smee, Lumière, Merlin.
- Jeff does a voice in the game Who Wants to Be a Millionaire?: Sports Edition for the PC.
- He usually provides voices for the male adult characters, and rarely young boys.
- He voiced Jango Fett from the video game, Star Wars: Galactic Battlegrounds.
- He once did the narration for the Three Stooges Anniversary Special on the WPIX channel.
- He has had several video game roles, including Star Wars: Jedi Knight II, Kingdom Hearts, Baldur's Gate, and Quest for Glory IV: Shadows of Darkness.
- He does the voice for Petrie in The Land Before Time series, making Petrie the only character who's had the same person do his voice throughout the entire series.
- He does some Kids WB commercials.
