Question: Who is the actor that plays professor snape?
Disambiguated questions and answers: question: Who is the actor that plays Professor Severus Snape as an adult?
Who is the actor that plays Severus Snape as a teenager?
Who is the actor that plays Severus Snape as a child?
answer: Alan Rickman
Alec Hopkins
Benedict Clarke
Natural Questions answer: Alan Sidney Patrick Rickman (from the Wikipedia article "Alan Rickman")