R. Martin Klein

R. Martin Klein is an American theater, film, and voice actor who went under the alias name Bob Marx in his earlier dubbing work during the 1990s. He is best known for playing Gomamon/Ikkakumon in ', Fukurou in Noein and Katsuhiko Jinnai in El Hazard. In addition to voiceovers, Klein has also worked on theater and film productions.

• Battle B-Daman - The Big Cheese, Additional Voices
• Blue Dragon - Marumaro
• Cyborg 009 - Ivan Whisky/Cyborg 001
• ' - Bukamon/Gomamon/Ikkakumon (Adventure-Adventure 02), Professor Takenouchi (Adventure 02), Toshiaki Mori (Tamers), Gotsumon (Frontier), Additional Voices
• Digimon Data Squad - Gomamon, Zudomon
• Digimon Fusion - Archelomon, Bukamon
• Eagle Riders - Mallanox
• El Hazard - Katsuhiko Jinnai
• FLCL - Gaku
• Flint the Time Detective - Flint Hammerhead
• Giant Robo - Additional Voices
• Gatchaman - Solaris
• Hand Maid May - Kotaro Nanbara
• Hyper Doll - Kurageman
• Magical Meow Meow Taruto - Kakipi
• MÄR - Pozan
• Mirmo! - Kororo
• ' - Jidan Nickard
• Mon Colle Knights - Impy, Additional Voices
• Noein - Fukurou
• Zatch Bell! - Grisor

• A Martian Christmas - Office Manager, Martian Officer (as "Robert Mark Klein")
• ' - Tony, Rouge#2 (as "Bill Lader")
• ' - Tony (as "Bill Lader")
• Perfect Blue - Mr. Me-Mania
• ' - Gomamon
• Meet the Fockers - Moe Focker (DVD Extended)
• Digimon Adventure tri. - Bukamon/Gomamon/Ikkakumon, Additional voices (as "Bob Klein")
• The Little Polar Bear - Lemming
• ' - Gomamon/Ikkakumon (as "Bob Klein")
• Cinderella and the Secret Prince - Manny (as "Bob Klein")
• ' (standalone dub) - Gomamon, Male Neighbor 2A, Additional Voices

Video games

• .hack series - Harald Hoerwick, Marlo
• Digimon All-Star Rumble - Tentomon, MegaKabuterimon, TyrantKabuterimon, Gomamon, Plesiomon, Aegisdramon
• Paraworld - Trader
• ' - Lias Warren