Die-hard Whovians have been looking forward to the season 7 part 2 premiere of Doctor Who since December.

But let's assume that you've never heard of a time-traveling alien in a blue telephone booth and have no idea what TARDIS stands for. You don't fear the Daleks, and couldn't care less about Cybermen. That's OK! The Doctor has been around since 1963, and he's always looking for new companions.

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Before you join the Whovian fleet, you must first understand the Time Lord who started it all.

"Classic" Doctor Who started in the '60s and ended in 1989.

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BBC revived the show in 2005, amassing a gigantic following.

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Over the past 50 years, there have been 11 Doctors. While the actors change, the character doesn't.

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That's because he regenerates into another body.

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The current Doctor is played by Matt Smith.

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The Doctor travels in a time machine called the TARDIS (Time and Relative Dimension in Space).

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He carries a tool called a Sonic Screwdriver.

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He always has a companion by his side to travel around the universe.

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Sometimes he falls in love with her.

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Or she falls in love with him.

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Other times they're like brother and sister.

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And then you have the Ponds (long story with strange dynamics).

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But they all eventually leave, and everyone cries.

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Now Clara is the next companion. We don't know a lot about her yet.

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The Doctor also has Dr. River Song, with whom he's "friendly" (but we won't spoil that story).

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The Daleks destroyed the Doctor's planet. He's the only Time Lord left in the universe.

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Daleks are terrifying, but they aren't the only enemy. There's also Cybermen...

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Weeping Angels

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SO. MANY. ENEMIES.

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But as long as we have a Time Lord, humans will be safe.

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Oh, and P.S...

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Image courtesy of BBC