Knock-Knock is Albert Trotter's friend who appeared in "He Ain't Heavy, He's My Uncle".he met him during school even sat next to him in class when he was young they both bought Dora a drink but later outside the pub he square up to him and he threw a punch at him over Dora

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.