"Expecting a good character? Too bad! Waluigi time!"
Charles Martinet (2000-present)
Media of Origin:
Waluigi (Japanese: ワルイージ) is a character from the Super Mario franchise who plays the role of Luigi's arch-rival and accompanies Wario in the spin-off games, making his first appearance in Mario Tennis.
Similar to Pink Gold Peach, Metal Mario, Baby Daisy, and all gold alterations of the Mario characters besides Gold Mario, the sole purpose for his existence is to be filler. In fact, the only reason why he was created in the first place was because Wario needed a tennis partner.
The voice acting of him is mediocre as he doesn't sound anything special, even though Charles Martinet put his efforts on voicing him.
Mediocre design, especially for Super Mario standards.
He barely has much of a personality outside of being greedy and being a cheater who thinks that the world is against him.
Overuse of his catchphrase, "Wah!" Which sooner to get repetitive for some people.
One of his only other purposes is to be an anti-Luigi, which may have not worked in the first place. With Wario, it is somewhat clever since people consider the letter W as just an upside-down M, but an upside-down L is very difficult to work with.
He is at least funny in some instances.
At least he has a friendly relationship between him and Wario and doesn't treat him poorly.
He has garnered a little yet dedicated fanbase who want him to have more pivotal roles instead of being relegated to a joke character.
At least he has a significant role in DDR Mario Mix.
The Mario franchise wouldn't be the same without him.
Similar to how Wario got his name, Waluigi's name is a portmanteau of the Japanese adjective "warui" (悪い), meaning "bad", and "ruīji" (ルイージ), meaning "Luigi"; hence, Waluigi is a "bad Luigi".
The upside-down "L" on Waluigi's cap is actually the Greek letter Gamma (Γ).
He was created by Fumihide Aoki.
It is theorized that he could be related to Wario, but his voice actor, Charles Martinet, stated that, while he did not know, he felt that they were just "two nice, evil guys who found each other".