- See Fox for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
In 2267, Ambassador Fox was dispatched to the planet Eminiar VII aboard the USS Enterprise, to establish a treaty port for the Federation. Despite the fact that Eminiar had issued a Code 710, which demanded that intruders stay away from the world, Fox ordered the Starfleet vessel to the planet anyway. This resulted in the Enterprise being declared a casualty in the long-running war between Eminiar and neighboring Vendikar. Fox persisted in negotiating without acknowledging this circumstance, beaming down to Eminiar himself with his aide. However, when he was forcibly taken to the disintegration station, Fox finally understood his error in judgment. After Captain James T. Kirk and Commander Spock destroyed the virtual war computers, Fox volunteered to stay and help the two worlds negotiate a real and lasting peace. (TOS episode: "A Taste of Armageddon")
After realizing Nimbus III had not been claimed, despite being located within areas common to the Klingon Empire, Romulan Empire and Federation, Fox conceived the idea that all three powers should jointly claim and develop it. He named Paradise City, and assumed that the desolate world would eventually be terraformed into a paradise. (ST reference: Federation: The First 150 Years)
In 2269, Fox was sent to the Delta Triangle, where he negotiated a deal between the Gorn Hegemony and the Elysian Council, which ended an armed Gorn blockade of the region, in return for the promise that a Gorn criminal named Glind would not be allowed to leave Elysia. Commander Mahmud al-Khaled, a friend of Montgomery Scott, noted that Fox seemed less temperamental than the man Scotty had described dealing with previously. (SCE eBook: Where Time Stands Still)
In the 2280s, Fox traveled to Babel aboard the Enterprise to partake in the peace talks with Klingon Ambassador Kalor. En route, he was attacked by an agent of the Orion Victory League. After this assassination attempt was foiled, Fox discovered in his quarters a tape informing him his would-be assassin, called "Enigma", was actually his daughter, Trisha, who had been brainwashed by the League. The crew of the Enterprise were ultimately successful in capturing Trisha, and ensuring she received treatment. Fox hoped once she'd recovered, he and his daughter could start their relationship anew. (TOS comic: "Who Is... Enigma?")
- The naming of a ship in his honor would tend to suggest Fox had died by the year 2293.
Fox's reputation was not universally positive, however. In the 2260s, Leonard McCoy coined the phrase "Robert Fox Syndrome," referring to any Starfleet officer putting their own ego before the safety of others. (SCE novel: Interphase, Part One)