Loni Loud

Unlike Leni, Loni's blond hair is shorter, and his sunglasses aren't as circular. Instead of wearing a dress, he wears a light green silk sweater with a white long-sleeved shirt underneath, and dark blue jeans; instead of wearing sandals, Loni wears light green socks with white spots and brown dress shoes.

Loni is just as ditzy as Leni, but lacks her compassion, not caring when his brothers get hurt. He laughs at Lincoln's relationship with Ronnie Anne and how he suffers physical pain. This contradicts the caring and kind personality of Leni towards Lincoln.
However in the world with Linka Loud, Loni and the rest of the brothers are shown to be very caring and protective of her--in fact, Loni's the one who makes the offer of the brothers staying with her until Linka falls asleep after they hear their sister screaming in the middle of the night.

His shirt is available in game "The Loud House Cartoon Creator".
Loni is voiced by Liliana Mumy's role opposite Sean Astin, who is one of the four main cast members of the 2012 series of TMNT who voiced the turtles.

FULL NAME
Loni Loud
AGE
30
RELATIVES
Rita Loud (mother)
Lynn Loud Sr. (father)
Loki Loud (older brother)
Luke Loud (younger brother)
Lane Loud (younger brother)
Lynn Loud (younger brother)
Lincoln Loud (younger brother; one dimension)
Linka Loud (younger sister; one dimension)
Lars Loud (younger brother)
Leif Loud (younger brother)
Lexx Loud (younger brother)
Levi Loud (younger brother)
Leon Loud (youngest brother)
FRIENDS
His brothers
Linka
LIKES
Dairyland Amoosement Park
Gus' Games and Grub
Dog piling his dad
Playing keep away
Dutch ovens
Pizza
Hockey
Abusing Lincoln
DISLIKES
Linka having troubles with sleep
Bumping into walls