Harry Potter star Daniel Radcliffe recalls how intimidating he initially found Professor Snape actor Alan Rickman while working on the hit movie franchise. Rickman, whose early movie career was largely defined by playing menacing villains, was cast in the pivotal role of Hogwarts’ resident potions master Severus Snape. A cold and calculating wizard who takes an almost instant disliking to Radcliffe’s young Harry Potter, his character is later revealed to be a double agent working secretly for Albus Dumbledore and the Order of the Phoenix against Lord Voldemort.
https://screenrant.com/harry-potter-daniel-radcliffe-alan-rickman-set-memory/