Billy also felt the strong urge for a family, holding onto his mother's necklace as the most valued of all his possessions and desiring nothing more than a family. Billy also exhibits positive character traits, showing self-restraint by not using his powers against the bullies in his orphanage.
Back in the orphanage, Batman pays him a visit along with a surprise. Batman had done some research and found Billy's sister, a girl named Mary Batson, who had been adopted by the Broomfield's. Billy then leaves with his new family, happy at last.
Billy Batson uses the magic word SHAZAM to transform into Shazam and every letter of the word stands for a different power or ability.
- S for the Wisdom of Solomon: Grants Shazam enhanced intellect that allows him to come up with solutions to incredibly long and complicated problems and solutions. He is also able to innately speak any language, and can hypnotize another person with just his voice, though the latter power was used rarely.
- H for the Strength of Hercules: Grants Shazam incredible superhuman strength that is comparable to the strength possessed by Superman .
- A for the Stamina of Atlas : Grants Shazam superhuman stamina, makes him self-sustaining, and gives him an incredible healing factor.
- Z for the Power of Zeus: Grants Shazam incredible resistance to magic, allows him to heal himself after he has suffered severe damage, and transforms him from his preteen form into his Shazam form. He can also dodge the lightning bolt and use it as a weapon.
- A for the Courage of Achilles: Grants shazam vast physical resistance to damage, making him virtually invulnerable. It also grants him incredible inner strength, that allows him to resist mental assaults and manipulation, and to have the courage to face anything.
- M for the Speed of Mercury: Grants Shazam the ability to fly, superhuman speed, superhuman agility, and superhuman reflexes all at supersonic speeds.
If Shazam is hit by lightning in his super form, he immediately turns back into Billy.
Billy can also be prevented from turning into Captain Marvel if he is gagged or otherwise rendered unable to utter his magic word out loud.
While Billy has the physical form of an adult as Shazam, he still has the personality of a child his age, which may make him too trusting at times.
- Billy is a fan of Superman, which became his idol.