Astra is a fictional Ultraman character from the Japanese tokusatsu series Ultraman Leo. He is the younger twin brother of Ultraman Leo and a warrior from the Land of Light. Astra is known for his strong loyalty, bravery, and close bond with Leo, often fighting alongside him against powerful threats. In the series, he plays the role of a supporting hero and ally, helping defend Earth and the universe from monsters and alien invaders.