|Birth name||Zachary James Sherwin|
|Nickname(s)||MC Mr. Napkins (formerly)|
|Appeared In||Albert Einstein vs Stephen Hawking|
Doc Brown vs Doctor Who
Batman vs Sherlock Holmes
Nelson, Mark, Steven and Lucas
Donald Trump vs Ebenezer Scrooge
Himself (DRFH 13)
Zachery James "Zach" Sherwin (Formerly known as MC Mr. Napkins) is an American YouTuber, rapper and comedian who has appeared in four ERBs to date. He has also helped write the ERBs with Nice Peter and Lloyd Ahlquist after the episode he first appeared in, including Doc Brown vs Doctor Who, Batman vs Sherlock Holmes and Donald Trump vs Ebenezer Scrooge. He also appeared as a guest rapper in Dis Raps For Hire 13.
- Main gallery: Zach Sherwin/Gallery
- Every battle he's been in features some kind of doctor (medicine, philosophy and the like).
- All of Zach's main opponents were played by Nice Peter, or at least partly: Stephen Hawking, Doctor Who, Batman, and Donald Trump.
- Zach has also portrayed three intelligent people so far (Einstein, Doc Brown, and Sherlock Holmes).
- He has had the most guest appearances out of all other guests.
- Most of his characters have had different accents. Einstein had a German accent, Brown had an American accent, and Holmes and Scrooge had a British accent.
- He, George Watsky, Key & Peele and DeStorm Power, so far, are the only guest stars to have a rapping role in more than 1 season.
- He's the only guest rapper to appear in all three seasons.
- He was the first guest rapper in Dis Raps For Hire.
- In a recent video, he said he's quitting the stage name "MC Mr. Napkins" and just keeping him known as simply Zach Sherwin.