Cordo

Cordo was a D-grade worker residing on Pluto. When he found that he could not afford to pay the Usurians' Company for his father's death taxes, he attempted to commit suicide. The Doctor and Leela stopped him, and 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 distructed them, they eventually helped them overthrow the Company. (DW: The Sun Makers)