|This article is about a/an kaijin in Kamen Rider Black RX.|
The Skullmasters (スカル魔スター Sukaru-Ma Sutā, Lit. "Skull Demon Star", Pun on "Star" and "Master") are two hornless versions of Skullma. Like their master then can fly and are each equipped with a scythe.
Following Skullma's death, the two Skullmastars still continued to work for the Crisis Empire on different occasions.
- Kamen Rider 1 Through RX: Big Gathering (archive footage only)
- Kamen Rider Black RX