If you're gonna add a narrator to your television series, you better make sure that casting is a perfect choice. The best narrator voices television has to offer end up being as memorable as the actual stars of the shows themselves.
Think about it: What would Arrested Development even be without Ron Howard's deadpan delivery summing up the Bluth family's antics during every episode? Is Gossip Girl even Gossip Girl without Kristen Bell doing her thing? Imagine if Josh Radnor had done the narration for How I Met Your Mother instead of Bob Saget. Sometimes an unseen star narrator ends up being one of the most vital aspects of a TV hit.