Who is in charge of preparing the magic potion in the comic "Asterix"?

Explanation

Getafix is the village druid and in charge of preparing the magic potion. He is portrayed as an elder, well-respected gentleman who is sometimes a bit confused. Sometimes the Romans or other opponents manage to take Getafix out of the game for a while, but in the end, the Gauls always win. He is one of the characters in the comic book series "Asterix", created by René Goscinny and Albert Uderzo.