Bernard V. Rumfoord is a fictional character from the science fiction novel "Cat's Cradle" by Kurt Vonnegut. He is a wealthy and influential businessman who plays a significant role in the story, particularly in relation to the development of a substance called ice-nine, which has catastrophic implications for the world. Rumfoord is depicted as a complex character, often embodying themes of power and morality. His interactions with other characters highlight the absurdities of modern society and the consequences of technological advancements. Through Rumfoord, Vonnegut explores the impact of human actions on both individuals and the environment.