(Warning: Links may contain spoilers for TV shows / books / audiobooks / comic books.)
As you are likely aware, I recently rewatched all of Buffy the Vampire Slayer and Angel. If you watch either show, then you know that the character of Spike is played by James Marsters. As it turns out, Mr. Marsters is also the narrator of the Dresden Files audiobooks (my current audiobook series). Having finished up my Buffy and Angel marathon (254 combined episodes in 7 weeks == insanity, by the way), I’ve switched obsessions to Arrow. On this show, the role of Quentin Lance is played by Paul Blackthorne… who played Harry Dresden in short-lived Dresden Files TV series.
I know the world is small, and that sticking in the sci-fi/fantasy/comic book world makes it even smaller, but this is getting kind of silly.
And the actor who plays Ronnie Raymond in The Flash (Robbie Amell), played Stephen Jameson on The Tomorrow People. The CW is recycling actors! http://www.imdb.com/name/nm2064412/