R. Martin Klein

, birth name Robert Martin Klein and also credited as Bob Klein, is an American voice actor.

Digimon Adventure/Digimon Adventure 021

 * Haruhiko Takenouchi
 * Haruhiko Takenouchi

Digimon Tamers

 * Clockmon in "Blame it on Ryo" [28]
 * Man in Black
 * Toshiaki Mori

Digimon Frontier

 * ' / ' in "Can't Keep a Grumblemon Down" [10] and "" [44]
 * Candlemon
 *  in "Bad To The Bones" [43]
 * Honeybeemon
 * Nohemon in "Trailmon vs. Trailmon" [29]
 * Pagumon
 * Toucanmon

Digimon Data Squad

 * Zudomon
 * Gomamon
 * Ikkakumon
 * Hagurumon
 * Akihiro Kurata's Troopers

Digimon Fusion

 * Pukamon
 * RedMeramon
 * RedMeramon