Lynn Loud Sr.

Mr. Loud (or Dad) is the father of Lincoln Loud and his sisters.

Personality
Mr. Loud is stern and often calls a halt to his kids' fights, but he loves and cares about them. He also loves his wife and often acts playfully romantic towards her. He has been shown to have a childlike side at times, even sometimes taking part in his kids' antics when it's all in good fun. He's also the more sensitive of the two parents, often necessitating his wife stepping in whenever he needs to pull himself together.

Appearance
Mr. Loud wears a green sweater with a yellow checkered collar and cuffs, and brown slacks. While his face is never shown to the camera, he has a pointy nose and curly brown hair that's thinning on the top.

In House Music, when he is playing the cowbell, he has a yellow-striped shirt, and green pants which his underwear was seen. In his youth, he sported a mustache.

Trivia

 * Unlike most adults, his face is never shown. However, his eyes were shown in a rear-view mirror in "The Sweet Spot". Also, in "House Music", his face was seen but he covered his eyes and mouth. Finally, when he rode the wurly-wurl, his mouth could barely be seen.
 * He has the same fear of spiders as Leni.
 * He's the only member of the family (aside from Luan herself) to enjoy Luan's many bad puns.
 * In fact, "Cover Girls" even implies that Luan gets her sense of humor from him.
 * He is the first character in the series apart from Lincoln to speak to the audience. This instance occurred at the end of "It's a Loud, Loud, Loud, Loud House".
 * His personality is very similar to Tom Harper from Nicky, Ricky, Dicky & Dawn​, as well as Harold Buttowski from Kick Buttowski: Suburban Daredevil, other characters who are dads played by Brian Stepanek.
 * It's revealed in "House Music" that he used to be in a band, but got kicked out due to playing his cowbell too much, even when they were not practicing.
 * He is currently the only member of the immediate Loud family whose first name is unknown.