What is the surname of the character in 'The Simpsons' known as 'Comic Book Guy'?

'Comic Book Guy' is the common, popular name for Jeffrey "Jeff" Albertson, a recurring fictional character in the animated television series 'The Simpsons'. He is voiced by Hank Azaria and first appeared in the second-season episode "Three Men and a Comic Book", which originally aired on May 9, 1991. 'Comic Book Guy' is the proprietor of a comic book store, The Android's Dungeon & Baseball Card Shop. He is based on "every comic book store guy in America" and represents a stereotypical middle-aged comic-book collector. He is well known for his distinctive accent, disagreeable personality and his catchphrase, "Worst [blank] ever!"