Final answer:
Jeremy Bentham (1748-1832) is the key scholar associated with the utilitarianism philosophy. John Stuart Mill (1806-1873) was another important figure in utilitarianism.
Step-by-step explanation:
The key scholar associated with the utilitarianism philosophy is Jeremy Bentham (1748-1832). He was the first philosopher to articulate the principle of utility. Another important figure in utilitarianism is John Stuart Mill (1806-1873), who was a follower of Bentham and popularized the idea of maximizing individual freedom through the harm principle.