Rebecca's grandfather

 was the father of Mike Parham and the paternal grandfather of Rebecca, Rachel and David Parham. He was a rocket scientist at the Air Force and is a minor character who appeared in I Got Stuck on a Roof.

Appearance
He appeared as a tall man with an average weight and a white skin tone. He had brown hair, a blue hat on, a pair of shades, a pair of black boots and a blue suit on.

Personality
All that is known is that he loved doing rocket science and engineering.

Role in video
He was shown as a pilot or a rocket scientist in the Air Force. He shows that a mark for intelligence is knowing cause and effect.

Relationships
He's the father of Mike Parham, he loves them both if he saw them both. Moreover, he has a good relationship with Mike's kids.