A Cardassian officer who follows Legate Damar into revolt against the Dominion and serves in the resistance that Kira Nerys is sent to advise in the last weeks of the war.
Seskal appears in When It Rains… and The Dogs of War, played by Vaughn Armstrong.
In 2375 he is one of the officers gathered around Damar when Kira, Odo and Garak arrive to teach the Cardassian Liberation Front the methods of the Bajoran resistance. Seskal is uneasy about tactics that could mean killing fellow Cardassians, but he is less openly hostile to Kira than Gul Rusot.
In The Dogs of War he commands the ship that carries Damar, Kira and Garak to Cardassia Prime for a meeting with a supposed ally. The meeting is a Dominion trap. Seskal reports that his vessel is under attack and it is destroyed, stranding the three on the planet as the rebellion's bases are wiped out.