When the Fire Emblem: Three Houses Ashen Wolves campaign was announced, people might have noticed in the first trailer that only a handful of students from the other classes seemed to appear. Now the Japanese Twitter account confirmed all of the Fire Emblem Three Houses characters from the main game who will be playable in this add-on. Byleth and six students from Black Eagles, Blue Lions, and Golden Deer will show up.
As mentioned by Nintendo earlier, the Ashen Wolves campaign doesn’t work like the main story. You have set Fire Emblem: Three Houses characters with you, rather than having a full cast where you pick and choose who you recruit and who goes into battle with you. Byleth and the three house leaders, Claude, Dimitri, and Edelgard, are four of the people who will appear, while Ashe, Hilda, and Linhardt appear as three additional students who will aid you on this adventure. The other four characters are the Ashen Wolves themselves: Balthus, Constance, Hapi, and Yuri.
Fire Emblem: Three Houses is available for the Nintendo Switch. Its Ashen Wolves campaign will be available for people who purchased the Expansion Pass on February 12, 2020 in North America and February 13, 2020 in Europe.