Princess Komand'r ("Blackfire" in American English) is a major villain of the Teen Titans, is the older sister of Starfire, who also hails from planet Tamaran. Blackfire was always mean to Starfire her whole life, even back when they were little kids. When Starfire was five, Blackfire stole her favorite doll from her and although, Starfire always has been nice to Blackfire, Blackfire remained cold-hearted.