Robert Knox

Robert Knox was a human who acquired a TARDIS.

Biography
Knox acquired his Type 70 TARDIS from a Nekkistani dealer on Gryben.

Knox first met the Sixth Doctor when he was contracted to give humans an alien flu virus to help cure an alien race. During this time Knox also placed a few days in 1827 in a time bubble so that he could charge alien businessmen to watch the suffering of the humans in that period. Knox was stopped by the Doctor, who destroyed the time bubble and purposefully infected Knox with the alien virus. (BFA: Medicinal Purposes)

Knox once killed John Booth to prevent Booth killing Abraham Lincoln. After his scheme to alter history was stopped by the Doctor and Evelyn Smythe, Knox was seemingly killed by the Indo. Knox escaped however, in the body of another human. (BFA: Assassin in the Limelight)

Appearance
Knox wore a silk cravat and wore a cardigan at the Charge of the Light Brigade. (BFA: Assassin in the Limelight)