When Emily is told she's dating a henchman, she's shown a dating web page that reads:
5 Signs You're Dating a Henchman
1. He has cuts and bruises all the time and can never recall exactly how he got them.
2. He only pays in cash.
3. He owns more than one turtleneck.
4. He has no friends of his own.
5. He takes you away on a romantic weekend to his boss' lair carved into the side of a mountain.
Original pilot had the cast working at a life insurance company covering superhero related deaths. After it was picked up to series, it was changed to a Wayne corp subsidiary focused on creating products that prevent innocent bystanders from being hurt.
Van Wayne is loosely based on a preexisting Earth-One continuity character, Vanderveer Wayne, Bruce Wayne's rich and spoiled cousin.
Alan Tudyk, who plays Van Wayne, has voiced many characters in DC Animated Films and series, including Superman, Green Arrow and The Flash.
Not based directly on a DC Comics publication. Ironically, though, their main competition Marvel published a series titled "Powerless" in 2004 that explored Marvel's characters if they had never gained superpowers.