Rex's father is the main antagonist of the 2014 sequel, Horrible Bosses 2.
After Nick, Dale and Kurt decide to launch their own business, a savvy investor appears to take them down. With no other viable option in sight, the trio decide to kidnap the investor's son in order to put up a ransom to take back their business.
- Christoph Waltz worked with Jamie Foxx in the 2012 film, Django Unchained, as a father figure and close ally to Django Freeman.
- He also worked with Jason Sudeikis in the 2013 film, Epic, where he played the main villain, Mandrake against Jason Sudeikis' character's daughter, MK, played by Amanda Seyfried.
- He is the second villain played by Christoph Waltz to be a father.