Which sorcerer in Samaria offered the apostles money for the power to give the Holy Spirit?

Answer: Simon

Simon the sorcerer offered money; Peter said, "May your silver perish with you, because you thought you could buy the gift of God."

“Prior to that time, a man named Simon had practiced sorcery in the city and astounded the people of Samaria. He claimed to be someone great,”— Acts 8:9 (BSB)