Hugh Maguire portrays an Irish Catholic substitute of the character named Jack Fox O'Dwyer in the DC Extended Universe (DCEU) film Batman v Superman: Dawn of Justice.

[5] He is an experienced businessman, entrepreneur, and inventor who runs the business interests that supply weapons, gadgets, vehicles, and armor for Bruce Wayne to use when he fights crime as the vigilante Batman.

[6] Lucius Fox is regarded as having the "Midas Touch", an ability to turn failing businesses into successful conglomerates, and is consequently a highly sought-after businessman throughout the corporate world.

After overcoming the original challenge of returning Wayne Enterprises to its former glory, Fox has elected to stay, having been given an unparalleled freedom in the company.

[8] Her father sends her to personally locate Tim Drake, only to discover his secret identity as Red Robin and become involved in his conflicts with the League of Assassins.

Fox's youngest daughter, Tiffany, was first shown in Batman #308 (1979), but was not substantially explored until 2011's The New 52 reboot of DC's continuity, which reintroduced her along with her siblings in Batwing #22.

After Bruce Wayne announces his public support for Batman Inc., Fox becomes active supplying him with the company's resources and research prototypes.