Professor Membrane

Professor Membrane is the major supporting character of the cartoon, Invader Zim. He is the father of Dib and Gaz, but he has very little time for his offspring, being one of the most famous and important people on Earth. The Professor, as he is often called, is rarely at home, so he supervises his kids in the form of a floating monitor, which often spews out pre-recorded reminders that are often way out-of-date. Expectedly, Dib and Gaz refer to him as Dad.

Personality
Although his parenting skills seem to be missing in action, he really does love his kids, taking time at least once a year for dinner together—and always remembering to activate the food monitor. However, Membrane is somewhat ashamed of his son's belief in the paranormal, refusing to call it a "proper" branch of science. However, he believes Dib's obsession is just a phase (or as he speaks of it, "temporary insanity"), that Dib will grow out of, and allows his son to do as he pleases to an extent. On occasion, Membrane is so preoccupied with work that he fails to recognize his own kids (i.e. not recognizing Dib when he comes backstage in "Battle-Dib").

Abilities
In "The Most Horrible X-mas Ever", Membrane seems to have incredible power, similar to that of Dib's power in the episode "Dib's Wonderful Life of Doom", when he blasts open the back door with an energy beam fired from his glove, although this is likely based more upon technology than any natural gift. Professor Membrane has also had a grudge against Santa Claus ever since he was a child; on Christmas day, instead of giving him twelve cases of Uranium-238 as he'd asked, Santa gave him a present overflowing with socks.