Keswick is a male customer who made his first appearance in Papa's Freezeria Deluxe Edition!
The first clues to Keswick's past were said in "." He implied that he came from another universe called . However, this sort of contradicts the fact that he has parents, a sister, and a living in Petropolis. It could be said that they too came from that universe and followed him to Earth. This also shows that Keswick could be his own species of extraterrestrial animal form figuring he goes through animal stages throughout his life. In a sense, this means he is an alien. In , this is also supported by the fact that he goes through different metamorphoses with age. He also refers to his species by what his name is, a keswick. His parents weren't shown going through a metamorphosis, but it's unknown whether the metamorphosis with age is even treated as canon.