Ethan Klein is a popular internet personality and content creator known for his YouTube channel, h3h3Productions. He gained fame for his reaction videos, commentary on internet culture, and comedic sketches. Alongside his wife, Hila Klein, he co-hosts the H3 Podcast, where they discuss various topics, interview guests, and engage with their audience. Klein's content often critiques trends and controversies within the online community, making him a prominent figure in the YouTube landscape. He has also been involved in various collaborations and has a significant following across multiple social media platforms, including Twitter and Instagram.