Lexx Loud is the male version of Lola Loud.

1. Appearance - Unlike his female self, Lexx doesn't dress like a princess, instead he seems to dress like a king or a prince. He wears a white long-sleeved t-shirt tucked into his dark gray pants, supported by a brown belt, a pink cape, pink socks, brown boots and matching brown gloves. In contrast to Lola's tiara, Lexx wears a yellow crown with a sapphire in it. As opposed to his female counterpart missing her incisors, Lexx is missing his canines.
2. Personality - Like Lola, they are both spoiled brats who have anger issues but unlike Lola, Lexx is more like the Loud brothers by being harsh, doing dogpiles, aggressive and he makes insults not even Lola would do. But in the dimension with Linka Loud, Lexx and the rest of the brothers seem to be just as caring and protective of their sister as the Loud sisters are towards Lincoln.

Trivia:

1. Much like their female selves, he, Leif and Leon are all voiced by Grey Griffin.
2. His original design has his entire outfit being pink, as opposed to just having his cape being pink. His original design also has him carrying a gold scepter.
3. Lexx, along with Leif, are the only younger brothers to be voiced by male dubbers in the Latin American dub, in that case, by the same one (like their female counterparts).