Osloo

 was the Presidenta of the planet Capron. Osloo took over after she had her husband (the king) arrested and taken to the slave mines. She said that her step-son, Commander Ezz, was a traitor. When she discovered the Sixth Doctor's TARDIS, she tried to use it to invade the Earth thinking that their defences were weakened fighting World War II. When Peri Brown tried to warn Osloo of the dangers of her slave mines, she threw her in jail. (AUDIO: The Macros)