Loved the cameo appearance of another Black Sheep. The ones in the latest Eposide of Andor are Hebridean sheep. They are one of the Northern short-tailed breeds like Shetland, Icelandic and Soay. Primarily black their real claim to fame is the multiple horns with 2,4,6 or 8. They are believed to be elated to the Jacob sheep which are also polycerate or multi horned. Navajo Churro sheep also can have 4 horns but are somewhat different.
This is the flock that provided the sheep
Andor Hebridean sheep
edit to add 6 horns as an option and the link to the flock that provided the sheep for the show