“Until a character becomes a personality it cannot be believed.”

As quoted in Seven Minutes : The Life and Death of the American Animated Cartoon (1998) by Norman M. Klein. p. 48
Context: Until a character becomes a personality it cannot be believed. Without personality, the character may do funny or interesting things, but unless people are able to identify themselves with the character, its actions will seem unreal. And without personality, a story cannot ring true to the audience.