The Aliens

The Aliens are characters that appeared in two episodes of Callum: The Show and in both episodes they abduct Professor Callum.

In the first abduction of Professor Callum they probe him for his rectal samples. Later on in the second season when they abduct him again it is revealed that the probing device they used on the Professor may have been infected with deadly life taking germs, they tell Professor Callum that he has till the next day to live but they turn out to be wrong and he survives.

They're nicknamed "Day Aliens" because of the name Bill Callum made up to try and scare the Professor.