Much of Celos' personality is yet undiscovered, since again, in current canon Celos is still very baby. However, even as a newborn, Celos has been a happy and bubbly child, along with his brother. In toddlerhood, Celos has a lot of hyperactive energy - a daemon trait, maybe, but moreso a trait inherited likely from his hyperactive ultra-bubbly mom, Maci. Often, Celos is thrilled to spend all of his time running around, trying to climb on or up things, play-wrestling and play-fighting with Pyralis, and delightedly shrieking at the top of his lungs.

For double the fun, Pyralis acts the exact same way. Despite desperately searching, Tory and Maci have yet to find any sort of "off button" for the twins.