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Ralph Lazlo Bighead is Ed and Bev Bighead's son. He was disowned by Ed for not wanting to work for Conglom-O like his father, so he went to Hollo-Wood to become a cartoonist, which had always been his dream. However, he and Ed finally reunited and ended their feud after Ralph attends his parents wedding anniversary after being informed of the event by Rocko (whom he eventually bases the beaver character of Rolo on).

He rose to fame after creating a cartoon show called The Fatheads (about a married couple, based loosely on his parents). Afterwards, thinking he's out of the cartoon business, his bosses tell him before letting him go, to create a new show. In an attempt to get out of his contract, Ralph hired Rocko, Heffer and Filburt to create an intentionally bad cartoon called Wacky Delly to have it immediately cancelled (instead, the show becomes a runaway hit, much to his dismay).

After several attempts of creating bad episodes, such as showing a tub of mayo for ten whole minutes. Discouraged that he will get out, he finally gets involved in the series, Wacky Delly is cancelled, and his wish to leave the studio unintentionally comes true. In the end, he finally creates his masterpiece, only to find out that it is not as popular as Wacky Delly originally was.

Ralph tends to be more stoic than his parents and speaks in a much calmer, lower and monotone voice. However, when angered (as show in his debut) he starts having outbursts and begins beating his own head much like his father.

Creator Joe Murray did the voice portrayal of Ralph.


  • Mr. Lawrence and Martin Olson convinced Joe Murray to voice Ralph Bighead, a cartoonist character through which Murray satirized himself.
    • Ralph could possibly also be based on Murray himself, who is usually calm and quiet, like Ralph. The joke is that unlike Ralph, Murray would never scream.
  • Unlike his parents, he has purple hair and a much smaller head.
  • Ralph makes a cameo in "Rocko's Modern Christmas".
  • His famous quote can be heard on Heffer's television in "Mama's Boy".


For more images of this character, see their Gallery.

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