Something I noticed recently:
On The Flash, it's been established that main character Barry Allen (aka Grant Gustin) is an only child.
I was thinking though that if the producers ever want to do a storyline in which Barry discovers he has a long-lost older brother, they could do a lot worse than to hire writer/actor/comedian John Mulaney to play the elder Allen sibling.
Look at 'em! They're practically identical!
