Leo Valdez

Gender : Male

Godly Parent : Hephaestus (father)

Mortal Parent(s) : Esperanza Valdez (mother)

Sibling(s) : Members of Hephaestus' cabin(paternal half-siblings)

Leo is easygoing, upbeat, energetic, funny, flirty and loves to tell jokes, even if they aren't funny.

Leo is genuinely very intelligent and honest, and cares about his friends and family. He sometimes doesn't think before reacting and he enjoys pulling pranks on people, especially those who he doesn't like.

Despite his jokey attitude, Leo is emotionally scarred from the death of his mother and is crushed by guilt as he indirectly caused her death. He hides a hurt and angry demeanour with humour. Leo has been shown to have a serious side, which happens when he is angered by someone or when the situation calls for it. He is also seen building small bits of machinery and equipment and is very skilled and serious about his work.

He is also known to frequently fall in love with any beautiful girl as long as she is completely out of his league, such as in the case of Khione and Thalia. For example when Thalia, Jason and Leo were in the cave alone, Leo asked Thalia if her no-dating policy was seasonal, but she ignored him. Khione herself being a snow goddess, hates Leo as she can sense the fire within him and takes his compliments (Leo once called her hot) as insults. It is possible that this characteristic comes from his father, Hephaestus.

Eventually, he starts to let go of the pain of his mother's death and learns that his pyrokinesis is a gift and tool, not a curse. He also decides to stop running from his past and he starts opening up to his friends more.

Demigod Abilities

Fighting skills: Despite receiving no known formal combat training, during the battle at the Wolf House in The Lost Hero, Leo displayed considerable combat skills by using two silver-tipped blacksmith's hammers to "smash any monsters that got in his way."

Technokinesis: He has amazing mechanical abilities (even for a child of Hephaestus); he can manipulate a megaphone to say "The cow says moo" in a low voice like Darth Vader's and build a working helicopter out of pipe cleaners. He was able to fix the mechanical dragon Festus in one night, even though the rest of the Hephaestus cabin thought it was beyond repair and had to be destroyed. He even added wings to the dragon so it could fly.

Machine Aptitude: Leo can understand and sense machinery and has the ability to expertly operate machines he has had no prior experience with. He can also communicate with machines such as Festus.
Machine Expertise: Because Leo is a demigod child of Hephaestus, he can instinctively fly or drive any mechanical vehicle expertly, including cars, trains, or helicopters.
Machine Sensitivity: He can sense faults in metal ore and identify machinery type and use by touch.
Trap Detection: Leo can also sense traps, in particular mechanical traps.

Pyrokinesis: He is the first demigod child of Hephaestus in hundreds of years to master the ability of pyrokinesis, the ability to generate and control fire. At low-level ability would probably be moving a candle back and forth; if better, maybe putting out the flame with his mind or making it relight. Pyrokinesis is one of the more practiced skills like telekinesis. It is too, for warming people up or setting objects aflame. His pyrokinesis is supposedly a curse, but he is determined to interpret it as a gift. His pyrokinetic abilities can go as far as to shoot white hot flames high in the air that could burn through a metal chain link. However, sometimes he has trouble controlling his pyrokinesis when he gets excited or scared, beginning to heat up and smoke. He can throw fireballs/fire bolts, fire blasts and (if he concentrates hard enough), columns of fire.

Superheated Fire: Leo can increase the heat of his fire (to the point that it becomes white-hot), and can also create walls of flame. This is the main defensive use of his powers.
Fire Immunity: He discovers he is fireproof (he can even survive a kerosene barrel explosion without feeling any pain, unlike Jason who feels the pain of heat but is unharmed by lightning). For example, when he was a small baby, Hera (in the form of Tia Callida, his "insane" babysitter) puts him in a blazing fireplace and he is completely comfortable. However, when he was attacked by Festus' firebreath, it did sting him slightly. Many other things like this follow.
Heat Sensitivity: He can sense heat, flames, and metals, even allow him to walk through the forest at Camp half Blood at night, in the form of thermal vision.

Magical Items

Magical Toolbelt: He has a magical tool belt that he uses constantly. He can pull simple tools from the belt, as well as food, medical supplies, and breath mints. The belt is seemingly endless and he doesn't know where it all comes from. However, larger items, especially things that don't have to do with mechanics, require the belt to recharge or "cool down." It is also known that big items, such as chain-saws, or magic items, like Jason's sword, Ivlivs, cannot be pulled out of the belt.

His primary weapon is his 3-pound Club Hammer, which he summons from his tool belt from time to time.

Festus the Bronze Dragon was repaired and managed by Leo after his discovery of Bunker 9, used in the American Civil war as the Hephaestus bunker. He was later used as the figurehead of the Argo II.

Holographic Scroll- Leo's own invention.

Buford- Leo's magical three legged table.

Archimedes Sphere: Leo found it in Archimedes' workshop and repaired it. After that he was upgrading the sphere an made several copies. He can use it in different ways.