Las Primeras Aventuras de Gustavo is the Castilian Spanish dub of Kermit's Swamp Years, which was released in Spain on DVD on 2002.
Voices[]
- Juan Antonio Arroyo as Kermit the Frog (Gustavo)
- Chema Lara as Croaker
- Adolfo Moreno as Goggles
- Carlos Kaniowsky as Blotch
- Alfonso Laguna as Wilson
- José Ángel Juanes as Dr. Hugo Krassman
- Yolanda Mateos as Mary
- Xesús Arroyo as young Jim Henson