Ever since the classic British science fiction series was rebooted in 2005, Doctor Whohas continued to gain popularity worldwide, and the upcoming 15th season is already shaping up to be the biggest yet. Originally debuting in 1963 on the BBC, the series concerns a mysterious alien known only as The Doctor who travels through time and space with various human companions in their vessel, the TARDIS. With adventures ranging from cheesy to terrifying, Doctor Who has continued to captivate audiences with stories of excitement among the stars, in the past, and even in alternate dimensions.