Skunk Kusai, commonly known as just Skunk, is a fictional character appearing most of the time in a villainous role.
In the 1980s series, Skunk is a recurrent villain appearing in many episodes, who has a notable bluish skin. He is the leader of a gang of robbers, and most of the time he will directly fight Astro. Skunk is also the one who raised and taught Atlas during his youth.
In the 2003 series, Skunk is a secondary antagonist appearing in a few episodes. He has an important role in the episode Into Thin Air, as well as Reviving Jumbo. He is described by Robita as a criminal who specializes in using innocent robots to commit crimes.
Skunk appears as one of the main characters in Metropolis, where he plays the role of a highly-graded military officer.
In the 1960s series, he is voiced by Iemasa Kayumi in the Japanese version.
In the 1980s series, he is voiced by Seizo Katou in the Japanese version and by Jay Rath in the English version.
In the 2003 series, he is voiced by Kazuki Yao in the Japanese version and by Wally Wingert in the English version.
In Metropolis, he is voiced by Toshio Furukawa in the Japanese version and by Dan Woren in the English version.