|First Level||The Time Machine|
|Latest Level||The Time Machine Hard|
The Old Scientist is the man who created Grey Goo. As the name suggest, he is old, wears glasses, wears a lab coat, has a moustache, he's almost bald, wears black shoes and wears brown trousers. His colleague is the young scientist. He works at the Nano Research Headquarters. He's appears in Tasty Planet and Tasty Planet Back for Seconds. He can only be eaten in a bonus level called Clones.
- His size is about 33.6 centimeters