Little is known about Mr. Lewis's life, other than that besides English and French, before arriving at Portal High School, Mr. Lewis also learned Spanish, Italian, Portuguese, Irish, Esperanto, German, American Sign Language, Dutch, Chinese and Arabic.
In Portal High School, Mr. Lewis introduces himself with a musical verse mentioning all the languages above. CadenGallic immediately inquires about the origin of the words, and Mr. Lewis mentions that they are called languages and that he speaks the languages that he has mentioned, simultaneously demonstrating it by lapsing to French. Skepness Man Beauregarde is quick to drop in his two cents, saying that besides himself, no one else in the Marrissaverse has learned any foreign language, and Mr. Lewis is left with a positive impression of Skepness Man.
Mr. Lewis makes a cameo appearance in Chapter 28 of Spectators of the Host, where he is asked by Carlos what exactly "Double Spanish" is, and shrugs, deciding that it isn't relevant to enjoying the party.
- In real life, Benny Lewis has actually worked as an English as a Second Language (ESL) teacher, and writes about his experiences.
- Post-SCrash Session 3: Spectators of the Host (First appearance)