From 2014 to 2019, for the show's duration, Cannon executive produced, wrote and directed FOX's Gotham, which won the 2014 Critics Choice Award for Most Exciting New Series and received 11 Emmy nominations (one win).

[3] In July 2019, his newest television production, Pennyworth, which Cannon co-created and executive produced with Bruno Heller, premiered on Epix, concluding in November 2022 on HBO Max.

Cannon's immersion into primetime television began when he was hired by Jerry Bruckheimer to produce and direct the pilot episode of CSI: Crime Scene Investigation in 2000.

Cannon is credited with creating the look and visual style of the CSI,[6] which ran for 15 seasons, earning a total of 39 Emmy nominations and spawning three spinoff shows.

In 2007, Cannon co-created TNT's crime drama series starring Dylan McDermott called Dark Blue and directed the pilot episode.

In 2016, Cannon was brought on to direct reshoots for the feature film Geostorm, in an attempt to help save the studios over budget production.

Cannon executive produces and writes along with Heller, and has directed multiple episodes, including the series premiere, which have aired on Epix.