Servalan

Servalan was a fictional character from the science fiction TV series Blake's 7.

Servalan was the Supreme Commander who took over the Presidency of the Terran Federation. Ambitious and ruthless, she loves power and, naturally, misuses it. She is prepared to take any steps necessary to get her own way. After being deposed, she reemerges as "Commissioner Sleer" of the Security Forces to start a climb back to power.