Who's the infantile manchild with anger management issues?

I understand this weird angry manbaby is Richard Holden, an ex-Tory SPAD for Michael Fallon, then Chris Grayling, & then Gavin Williamson 😬, who from 2002 to 2006 was employed as a 'waiter & bar staff'. In April 2022 he called for Durham Constabulary to investigate Keir Starmer.