Peri is one of the main protagonists and sometimes the deuteragonists of Spliced. He is voiced by Rob Stefiaunk. He is a mutant spliced from an unknown rodent (possibly a red squirrel) and some kind of cephalopod (possibly a cuttle fish) who does not know what his purpose is. Every mutant on the island was spliced together with a purpose in mind. Everyone that is, except Peri. His body is extremely elastic, as shown in a few episodes. His home is a plane that crashed on the island. He enjoys bowling and a wild improvised game called "bucket-stick-fruit-ball" that always ends with someone being hurt. His best friend is Entrèe.
- He has been called "cute" many times by his "fans"
- Peri makes a doorbell sound whenever someone presses a specific spot on his head.
- He might be Scottish. Since Mister Smarty Smarts took his brain, his accent changed into scottish.