There are countless figures who made Doctor Who what it is. Indeed, there’re countless figures who made it great. But Terrance Dicks is the man who made it a show that thrills and vexes me enough to pen a million words analyzing it and still not feel done with it. He made it at once inscrutable and approachable, simple and fun yet endlessly thorny. He’s not why Doctor Who is good. But he is why generations love it, and why generations more will. There will never be anyone like him again on the program. There never could be. People like him don’t happen twice. They scarcely happen once. Thank the gods they did.