Wecht attended Williams College and the University of California, San Diego where he obtained his PhD in particle physics in 2004. Wecht held research positions at Harvard University, the Center for Theoretical Physics at the Massachusetts Institute of Technology, the Institute for Advanced Study, and the University of Michigan, prior to becoming a faculty member at the Queen Mary University of London. While there, Wecht worked on string theory, supersymmetry, and quantum field theory. Wecht has an extensive record of highly cited contributions. He retired in 2015 to join Game Grumps and dedicate himself to his music career.
Ninja Sex Party
Prior to meeting Dan Avidan, Wecht was the musical director of an improv comedy troupe in New York. In 2009, Avidan, who had conceptualized Ninja Sex Party and was in search of a bandmate and/or producer, was introduced to Wecht by Julie Katz, a member of Wecht's comedy troupe, to whom Avidan had asked if she knew any musicians. Specializing in humorous songs, both on stage or in their music videos, the duo started by appearing on various film festivals. They regularly published original songs on their YouTube channel, which progressively helped them in becoming popular, as well as studio albums on a regular basis. Although he only played keyboards on stage, Wecht performed all instruments on early Ninja Sex Party albums, including piano and drum machines, while Avidan was in charge of all vocals, except for occasional backing or spoken vocals by Wecht. Ultimately, the duo was joined by backing band Tupper Ware Remix Party in 2015, after which Wecht focused solely on keyboards for studio recordings.
Starbomb
Wecht's bandmate Dan Avidan had been the co-host of the Let's Play webseries Game Grumps since 2013. The same year, Wecht, Avidan, and Avidan's Game Grumps co-host Arin Hanson formed Starbomb. This new comedy band followed the humorous style of Ninja Sex Party, but focused on video game parodies. The project was officially revealed on December 3, 2013. It was quickly followed by a self-titled album on December 17. A second album, Player Select, was released on December 16, 2014. Starbomb's third album, The TryForce, was released on April 19, 2019.
''Game Grumps''
Wecht officially joined the Game Grumps team alongside Avidan and Hanson on November 5, 2015, becoming their new social media manager; he had occasionally appeared in their videos, mainly alongside Avidan to promote Ninja Sex Party. The team officially introduced him via a humorous sketch featured at the beginning of their BurgerTime video, "revealing" him to be the secret mastermind behind Game Grumps all along. He is occasionally featured in some of their videos, mostly in Grumpcade and Steam Train, but also in several non-gameplay videos. He was the co-writer, composer and puppeteer on their promotional short I Burgie Burgie, and its sequel All Hail Burgie.
Others
Wecht appeared in an episode of Hot Pepper Game Review episode on September 16, 2013, "reviewing" the video game Dark under his Ninja Brian persona after eating a "very spicy" chili pepper; the episode is a joke, as Ninja Brian simply stares at the camera in silence for the entire episode, not blinking a single time in almost four minutes. Although his mouth is not visible, Wecht confirmed that he did eat the pepper while filming. He also appeared in the fourth episode of the second season of Child Genius in 2014, having set questions about string theory for the participants, and reacting to their answers. He voiced the character of Quizzmaster Quinn in the video game , a 2017 visual novel video game made by members of Game Grumps. He also appeared in two episodes of Good Game, a webseries starring Avidan and Hanson. Alongside fellow Game Grumps member Barry Kramer and Rooster Teeth writer Miles Luna, Wecht co-wrote the episode "Grey vs. Gray" of Red vs. Blue.
Wecht is married to Rachel Wecht. The couple has a daughter, Audrey, born in 2014; nicknamed "Ninja Audrey", she appeared on several special Grumpcade episodes in 2017 with her father to celebrate Father's Day. One of his inspirations for becoming a theoretical physicist was the television series Quantum Leap. He has very negative views on being anti-vaccine, and towards the use of pseudoscience over scientifically-proven treatments for serious diseases.