Jason Grace is considered to be a more serious man, although he's more relaxed after meeting the Greeks. He's a Roman demigod, son of Jupiter. He has a small scar on his lip from trying to bite a stapler as a child, which is where his clumsiness stemmed. He's incredibly smart and an amazing leader. He's more of an logical thinker over emotional. Although he cares deeply for all of those close to him. He's incredibly kind and patient, and can seem like a push over until his patience finally thins