Question: Who plays the science teacher in captain underpants?

Disambiguated questions and answers:
context: No context provided
question: Who plays the usual science teacher in captain underpants?
short_answers: Melvin Dimas Rodríguez
Mel Rodriguez
Rodriguez
context: No context provided
question: Who plays the replacement science teacher in captain underpants?
short_answers: Kroll
Nicholas Kroll
Nick Kroll

Long-form answers:
knowledge: content: Captain Underpants is an illustrated children's novel series by American author and illustrator David Pilkey. The series revolves around two fourth-graders, George Beard and Harold Hutchins, living in Piqua, Ohio, and Captain Underpants, an aptly named superhero from one of the boys' homemade comic books, who accidentally becomes real when George and Harold hypnotize their cruel, bossy, and ill-tempered principal, Mr. Krupp. 
wikipage: Captain Underpants
content: Mr. Fyde was the science teacher at Jerome Horwitz Elementary School. Unlike all the other grown-ups in the school, he is rather dorky and stupid. The events of the first three books gradually cause him to believe himself is insane and resign from his job to put himself in a mental institution (but in the movie Mr. Krupp simply fires Fyde because he'd rather spend time with his family instead of judge the school science fair and Krupp considers this unacceptable). His name is a pun on the words "mystified" and "mortified." In the film, he is voiced by Mel Rodriguez. In the series he is voiced by Stephen Root, where he is released from the mental institution, though he becomes nervous around loud noise, which is unfortunate for Mr. Fyde; an elementary school is practically built on noise.
wikipage: Captain Underpants
content: Tippy Tinkletrousers (formerly known as Professor Pippy Pee-Pee Poopypants, and in the film as Prof. Pee-Pee Diarrheastien Poopypants Esq.) – A brilliant scientist who unfortunately comes from a foreign country where everyone has a silly name. In book 4, he forces everyone on earth to change their names into a silly one. After his defeat, Professor Poopypants changes his name, suggested by George rather than forcing everybody to change theirs. But Poopypants doesn’t change his name to something normal, instead, he changes it to his grandfather’s name Tippy Tinkletrousers. In the film, he is voiced by Nick Kroll.
wikipage: Captain Underpants
content: DreamWorks Animation acquired the rights to the series to make an animated feature film adaptation, which was released on June 2, 2017, to positive reviews.
wikipage: Captain Underpants
content: The Epic Tales of Captain Underpants is an American animated television series produced by DreamWorks Animation Television that is based on the film Captain Underpants: The First Epic Movie, which in turn is based on the Captain Underpants series of books by Dav Pilkey.[1][2] The series was released for Netflix on July 13, 2018.
wikipage: The Epic Tales of Captain Underpants
long_answer: Captain Underpants is an illustrated children's novel series by David Pilkey, that revolves around fourth-graders, George Beard and Harold Hutchins, and Captain Underpants, an aptly named superhero from one of the boys' homemade comic books, which DreamWorks Animation acquired the rights to, to create an animated feature film adaptation, released June 2017, and a Netflix television series, released July 2018. In the story, Mr. Fyde was the dorky science teacher at Jerome Horwitz Elementary School, who, after the events of the first three books, gradually believes himself to be insane and resign from his job. In the film, he is voiced by Mel Rodriguez and in the series he is voiced by Stephen Root. Tippy Tinkletrousers, formerly known as Professor Pippy Pee-Pee Poopypants, and in the film as Prof. Pee-Pee Diarrheastien Poopypants Esq., is the replacement science teacher in Captain Underpants, and is voiced by Nick Kroll in the film.