Dont give me that look you hideous man-Potato Man
He is known as the worlds greatest serial killer,that being a artificial potato created by source nose(He looks like a nose with a eyeball on-top)
He has cat ears because Source Nose said he chose cat ears because humans like that kind of junk,making Potato Man able to fit in a crowd of humans.
The only reason why he looks like a potato because Source Nose thought most humans look like potato.(which makes no sense what-so-ever)
But he malfunctioned and fell into a pool of deep frying oil.
Fun fact:He can appear randomly,so watch out!