I play a character who accompanies his best friend on all his adventures. But I am not as brave as my scarred friend is. Besides, He Who Must Not Be Named is not quite after my life. My brothers are talented, especially the twins who run a shop at Diagon Alley. My sister has a crush on my best friend who had once saved her life. Who am I?

Answer to last week’s question: Shefali Chowdhury