Theobald

Theobald, also called Tibbald by Alexander Pope, was a companion of the Ninth Doctor, who travelled alongside Alexander Pope. The pair were threatened with restriction from the TARDIS food machine's supply of viennetta. (PROSE: Double Falsehood)

Behind the scenes

 * Though only identified by his surname in PROSE: Double Falsehood, his full name in real life was Lewis Theobald.