The father of the Loud children. His whole face is unseen until the second season. Lynn, Sr. often breaks up fights between his children before it goes too far and does all the cooking in the family as he dreams of being a chef. In "Along Came a Sister", it is revealed that he has a fear of spiders like Leni. At the end of "Ties That Bind," it is revealed that Lynn, Sr. can only eat gluten-free foods. In "A Novel Idea", Lynn, Sr. is shown to work at an office building where he worked as an ITworker as revealed in "Job Insecurity". In "Toads and Tiaras," it is revealed that Lynn Jr. inherited her love of sports from him. In "Cover Girls", it is revealed that Luan inherited her bad sense of humor from him. In "Study Muffin", it is implied that Luna gets her British accent from him. In "Fed Up," it is revealed that Lynn Sr. follows his food budget due to how big his family is. In "Job Insecurity," Lynn Sr. has resigned from his job as an IT worker and has risen to the ranks of co-chef at the Aloha Comrade Hawaiian Russian Fusion Restaurant. In "A Fridge Too Far," Lynn Sr. develops plans to one day open his own restaurant.