"Porridge" was represented on the coins of the empire. Being, in the words of Angie Maitland, a "little bloke," he was made to appear much taller in his statues. Feeling the pressures of his office, "Porridge" left his title behind and escaped to Hedgewick's World of Wonders, where he became friends with Webley.
When the Eleventh Doctor, Clara Oswald, Angie Maitland and Artie Maitland visited the World of Wonders, he controlled a Cyberman when Artie was playing chess with it. Clara was put in charge of the platoon when the real Cybermen attacked. He helped her commanding the military staff. Later, when the Cybermen were temporally deactivated, Angie revealed that she had guessed his identity soon after meeting him. Conceding that the ending the threat of the Cybermen was more important than escaping his duties, Porridge activated the bomb that would implode the planet. The activation summoned the Imperial Flagship which transmatted everyone aboard moments later. The Cybermen and the planet were destroyed, and Porridge's ship was now a safe distance from the danger. In the ship, he proposed to Clara, telling her that he had "never met someone" like her, and that she could be "the queen of a thousand galaxies, and the wife of the emperor". Clara refused, telling him that she did not want to be a queen. Porridge then jokingly ordered Clara and her three friends to be executed, then told them to go before he changed his mind.
Once everyone else was gone, Porridge had the Imperial Flagship scan the debris for signs of surviving Cybermen, but detected none. Porridge briefly joked with Gloria about his job before having his ship take him home. (TV: Nightmare in Silver)
Porridge said that being emperor was "the loneliest job in the universe". He was glad to have some time where he could be an individual person rather than a ruler. Porridge admitted to Clara that he sometimes felt like a monster, confessing that he felt more sorry for the person who blew up a galaxy than for the billions of people who had died. He was attracted to Clara saying that she was smart and beautiful and he'd never met anyone like her. He even asked her to marry him but took her gentle rejection well and didn't get upset. Porridge also had a sense of humour, joking that he could have Clara, the Doctor and the Maitland children executed but then cheerfully sent them on their way. (TV: Nightmare in Silver)
Behind the scenes
Doctor Who: Legacy
In the story of Doctor Who: Legacy, Porridge first meets the Eleventh Doctor and his companions, Madame Vastra and Jenny Flint, after they face the Cybermites and Cybermen at Hedgewick's World of Wonders. He then joins the Doctor's company as they travel through time to stop the Sontarans' attacks throughout history.