Penguin

Penguin is a member of the Crew and Girl's close friend. Its real name is Sphence. It is a linux techno-mage. After the Corpo-Foss war, Penguin followed Puffy into exile and for 80 years was his only companion.

Penguin and Girl, salvaging old machines

In [issue] #? What Else Was I to Do, it was revealed that Penguin was Purple of arch_company, an elite group of Linux soldiers, who played a major role in ending the Corpo-Foss war.

In the spinoff series Fosschild, Penguin is seen accompanying Fosschild on its adventures.