Cordo

Cordo was a D-grade worker residing on Pluto.

Biography
When Cordo found that he could not afford to pay the Usurians' Company for his father's death taxes, he tried to commit suicide, but the Fourth Doctor and Leela stopped him. He explained to them the Company's hold over the people. Cordo decided to join Mandrel's band of rebels, taking the Doctor and Leela with him. Although the rebels initially distrusted them, they eventually helped them overthrow the Company. (DW: The Sun Makers)