Who asked Pilate for Jesus' body?

Answer: Joseph of Arimathea

Joseph of Arimathea, a rich man and disciple, asked for Jesus' body.

“When it was evening, there came a rich man from Arimathea named Joseph, who himself was a disciple of Jesus. He went to Pilate to ask for the body of Jesus, and Pilate ordered that it be given to him.”— Matthew 27:57-58 (BSB)