Apart from their flowing beards, that is, and it being commonly misunderstood that the same guy played them in the movies. Answer: Both these mentors disappeared to make merry while their hapless mentees stumbled from one near death experience to another. Further, both of them seemed to know the whole plot (background, foreground, past, future)… Read More Question: What do Albus Dumbledore and Gandalf the White have in common?