Yoshi is a minor character in the SML series. He is a green dinosaur that likes to repeat his name but can speak English, he's attached to Mama Luigi and he eats all of SuperMarioLogan's bad games and all of Marios mushrooms. Black Yoshi is Yoshi's cousin. He's voiced by Logan, Luke, Zeke, and ElectricStar on season 2 episode 3. But he reappears on season 2 episode 10, and got back from being trapped in bowser's powers. Then, Yoshi leads Mario to a time machine and gets attacked by Diddy Kong. Mario doesn't want to leave Yoshi behind, but he has no choice, and enters the warp of the time machine. He is a ghost in Luigi's Mansion Episode 1. His first appearance is SuperMarioLogan's Nintendo merchandise. His latest appearance is Black Yoshi's Girlfriend Problem As Timmy. His most recent appearance is in Black Yoshi's Girlfriend Problem!.
Yoshi has an odd personality. In videos after the debut of Mama Luigi, Yoshi lost almost all personality. However, earlier in "Season 0" of SuperMarioLogan, Yoshi plays a major role, revealing aspects of his personality.
Yoshi is Mario's deadbeat friend with a strange eating obsession. Yoshi eats almost anything, with no limits, whether it is food or Mario's collector's coin. Yoshi also is willing to commit crimes, such as when he doesn't pay and dashes at McDonalds in Yoshi Takes Mario to McDonald's. Despite this, when he does something wrong he feels regret and attempts to make up for it, such as when he takes Mario to McDonald's after eating his collector's coin.