No, it's not. That's more cockney with hints of West Country like when he says "atta a girl". Livepudlians have a Scouse accent. "Ya kna mean, carn be 'avin that sorra business roun ee-er" = You know what I mean, can't be having that sort of business around here. The accent all round is ropey and the actor could do with looking like an actual cancer patient rather than someone who has 5 square meals a day but I did like DeadMan in this short. Best performance and characterisation in the piece.
https://www.youtube.com/watch?v=OHfIAoF8gEc