Labour leader Ed Miliband admitted to a likeness with "Wallace" from the popular "Wallace and Gromit" films, but he said that politics rather than his image was what was important to him.
In a wide ranging speech to the Royal Institute of British Architects he said: "I am not from central casting. You can find people who are more square-jawed, more chiselled, look less like Wallace. "You could probably even find people who look better eating a bacon sandwich."
He added: "If you want a politician who thinks that a good photo is the most important thing, then don’t vote for me. Because I don’t."
Praising David Cameron, he said the Prime Minister "is a very sophisticated and successful exponent of a politics driven by image."
But he said he was not going to compete with that and wanted to "offer something different."