James T. Kirk/Appendices/Apocrypha

Outside of filmed canon productions, the character of Kirk had appeared in many novels, comics, games, and collectibles. While Kirk was the hero of nearly every TOS novel, he was notably the star of a series of novels by William Shatner (with Judith and Garfield Reeves-Stevens) which starred Kirk, reborn after his 24th century death when the Borg-Romulan alliance resurrected and brainwashed him, intending to use Kirk to kill Picard. 
However, surgery performed by Doctor Julian Bashir, aided by Admiral McCoy, removed the implant controlling Kirk's actions, and the residual 'programming' was removed thanks to a mind meld with Spock. After his condition was stabilized and the Borg-Romulan alliance was destroyed, as well as a fatal blow delivered to the Borg Collective, Kirk went on to form a close, albeit sometimes strained, friendship with Picard, as well as once again encounter the mirror universe as his other self returned to kill him. He even goes on to have a child with Teilani, a genetically-engineered Romulan/Klingon hybrid.
According to Star Trek II: Biographies, Kirk was born on July 28th, 2182 on Farside Base, Luna to parents Eugene Claudius Kirk and Marjorie Wimpole. He had a sister named Michele Suzanne Kirk.
According to several novels (such as and Best Destiny, both by Diane Carey) Kirk's father "George Samuel Kirk, Senior" was a Starfleet commander who was a close friend of Robert April and briefly the Enterprises executive officer on its first mission. The novel Collision Course by William Shatner gave James Kirk's father's name as "George Joseph Kirk". The name of Kirk's mother was said to be "Winona Kirk". Crisis on Centaurus stated George died on the planet Hellspawn in 2250, but this was overruled canonically in the 2009 film with Spock stating George Kirk saw James taking command of the Enterprise.
The DS9 novel Original Sin features an starship named the USS James T. Kirk (NCC-63719) in honor of Kirk. It had an illustrious service history which included exploration and defensive missions.
In the third and fourth issues of the IDW Publishing comic Star Trek: Spock: Reflections, Picard sent a message to Spock after the events of explaining how Kirk did not die on the Enterprise-B, but was pulled into the Nexus and how he left it to help Picard defeat Soran from killing 200 million people in order to re-enter the Nexus and in the process, Kirk was killed while saving Picard and millions of others. Since Kirk was already thought dead, and explaining the nature of the Nexus to Starfleet would be difficult, Picard decided to bury Kirk on Veridian III where he gave his life to save millions. Nonetheless, Picard felt Spock should know of Kirk's fate. Eventually, Spock traveled to Veridian III and retrieved Kirk's body where he brought him back home to Earth to be reburied at the Kirk family farm in Iowa. Spock explains to Picard how Kirk did the same for him, at a terrible cost, and says he needed to be equal to Kirk's sacrifice.
In the third issue of the Doctor Who crossover comic Assimilation², Kirk, Spock, McCoy and Scott investigate a Federation archaeological team on the planet Aprilia III on Stardate 3368.5, which had lost contact with Starfleet. Upon landing in the shuttlecraft Galileo, they are greeted by project manager Jefferson Whitmore, who assures them that all is well and gives them a tour of the facility, but Kirk finds the staff suspiciously calm. His team later return to the facility after dark where they meet the Fourth Doctor, assuming he's a member of the research team and he helps them break the electronic lock and together, they infiltrated the facility. There, they find the researchers standing catatonically, with small cybernetic devices in their ears. It is discovered they were under the control of the Doctor's enemies, the Cybermen. A battle ensues and Kirk fights the Cyber-Controller, but is proved no match for the cybernetic being. The Doctor then asks Kirk if he has any gold on him as he's had experience with the Cybermen and Kirk hands him his communicator. Kirk distracts the Cyber-Controller while the Doctor uses his sonic screwdriver to disintegrate the communicator's gold cover into dust and use it to clog up the Controller's respiration and allowing Spock to destroy it with his phaser. After the Cybermen are defeated and the Doctor slips quietly away, Kirk arranges for a permanent garrison of Starfleet Security personnel to protect the researchers against further Cyberman incursions.
In Star Trek Cats, Kirk is depicted as an orange tabby cat.