T. Solomon

Captain Solomon was an individual whom the Eleventh Doctor mentioned in a letter regarding an adventure a group of humans went on. In that letter, he admitted he couldn't decide who was his favourite between Corporal Albright and Solomon. (PROSE: Hello!)

Behind the scenes

 * Captain T. Solomon, portrayed in some showings by Daniel Millar and Joshua Hemmings, was a prominent character in the 2011 immersive experience The Crash of the Elysium. He was referenced in an in-character letter from the Eleventh Doctor, titled Hello!, which was given out to those who completed the experience.
 * This letter does rely on the context of the stage play, so without it, one cannot get a complete picture of Solomon's role in the story, however as this Wiki has deemed all stage plays to be invalid sources due to the inability to precisely determine every detail in a given stage play when it can vary between performances, The Crash of the Elysium is an invalid source.
 * Captain T. Solomon shares his name with Captain T. A. Solomon from the short story Pride of Mayfield Star Lines Beached in Devastating Storm released on the North West Historical Society tie-in website as part of the viral marketing for the experience, however despite their shared name and their involvement with multiple ships called Elysium, there appears to be no connection in-universe.

Information from invalid sources
In either Manchester 2011 or Ipswich 2012, depending on the variation of the source, Captain T. Solomon and Corporal Anna Albright led a group of humans into the crashed spaceship the Elysium, after they had been evacuated from a historical exhibition in a state of national security. Following video messages left by the Eleventh Doctor, who had been separated from the TARDIS after saving the crew of the ship from a Weeping Angel, Solomon, the other members of the army, and the humans went deeper into the ship before being sent back in time by an Angel.

After arriving in a fairground in 1888 and locating the TARDIS after speaking to Dolly and subsequently returning it to the Doctor by inserting an artron energy-imbued TARDIS key into the ship, Solomon and everyone else returned to the 21st century by using a vortex manipulator left for them by the Doctor. Back in the Elysium, the army instructed the humans to defeat the group of Angels advancing on them by using the artron energy to reactivate the Christofi Warp Drive, which merged the Angels into the wall. (STAGE: The Crash of the Elysium)