Gavin Richards is a pre-made playable Sim who appears in The Sims 4 base game, residing in Oasis Springs with his roommates Zoe Patel, Mitchell Kalani, and J Huntington III. He is acquaintances with all three of his roommates when first played, and knows no-one outside of their household.
Gavin is a young adult, with 24 days remaining in that life stage. He works in the Writer career as a Blogger, which is useful for completing his Bestselling Author aspiration. He has three skill points in writing.
Gavin and his roommates appear to be based on the lead characters from the sitcom New Girl, a US television series about an eccentric young woman named Jess and her three male roommates. Though Mitchell, J, and Gavin do not seem to be directly based on any one of Jess's roommates in particular, Gavin is probably intended to mostly resemble Winston, simply because Mitchell bears the greatest resemblance to Nick, while J bears a stronger similarity to Schmidt.