Fan Casting What if Doctor Who Wasn't Axed? Seventh Doctor (1990)

The Doctor and Ace went undercover on board the Space Vessel Vancouver with the Doctor posing as the Medical Officer and giving advice to Ace who was posing as the captain. The Vancouver was traveling to another ship, the Lilliput in order to collect a shipment of grain and take it to the planet Safensthome. After boarding the Lilliput with a boarding party and Ace and finding it deserted except for Victor. the Doctor soon discovered that a race known as the Grub had stowed away in the grain silo on the Lilliput after being kicked off their home world Safensthome by the Metatraxi Who were created by the Great Mother after they had devoured the food supply. The Doctor eventually gained communication with the planet, thanks to Victor who was working with the Metatraxi. After the Grub were returned to the planet, the Great Mother ordered the Metatraxi and Grub to share. After this the Doctor and Ace departed.