Mark Vorkosigan

also known as the Countess, the Captain, Admiral Naismith, Lieutenant Vorkosigan, Lord Vorkosigan, Admiral, the Lieutenant, Lord Mark, Jan Vandermark, Admiral Naismith (impersonation), Miles (impersonation), the Admiral (impersonation), Gorge, Grunt, Howl, the Other, Spot, Killer, Countess, Aunt Cordelia, the Count, Prime Minister, the Admiral

Clone-brother of Miles; throughout this chunk undergoes street violence, eavesdrops on his adoptive parents, is brought to Vorkosigan Surleau, learns of the cryo-chamber crisis, witnesses the Count's cardiac collapse, performs the taxation ceremony as proxy, dances with Kareen, and breaks down in Miles's room.