Son Goku is a fictional character and the main protagonist of the Dragon Ball series created by Akira Toriyama. He is a Saiyan, a warrior race known for their incredible strength and fighting abilities. Goku is characterized by his cheerful personality, love for adventure, and strong sense of justice. He trains rigorously to become stronger and protect his friends and the Earth from various threats. Goku possesses unique abilities, including superhuman strength, speed, and the power to fly. He can also harness energy for powerful attacks, such as the Kamehameha wave. Throughout the series, Goku faces numerous foes, including Frieza and Cell, while also forming strong bonds with other characters like Vegeta and Piccolo.