 Charlie Lee, creator of Litecoin. Charlie Lee is primarily known in the crypto world as the creator of Litecoin. Having overseen its implementation of Segregated Witness in 2017, Lee announced he had sold his personal stake later that year. Lee was previously director of engineering at US-based Exchange and Wallet Provider Coinbase. And before that, worked at Google. Eric Voorhees, CEO of Shapeshift.io. Activating the industry almost since it began, Eric's greatest claim to fame is arguably his crypto exchange platform, Shapeshift, and his well-known Bitcoin gambling game, Satoshi Dice. His active online presence ensures his voice is heard throughout the industry and mainstream media regarding Bitcoin's biggest questions. Don Tapscott, author of Blockchain Revolution. Don has become an increasingly well-known figure in the cryptocurrency industry, having been one of the foremost authorities on the impact of technology for decades. He is well known for authoring the book Blockchain Revolution in 2014 and has been an active blockchain governance reference and proponent since. Andreas Antonopoulos, Bitcoin evangelist and author of Mastering Bitcoin. Andreas has spent years speaking and educating consumers and experts alike on Bitcoin, blockchain, and the principles of decentralization. His prolific output led him to become the go-to source for crypto knowledge worldwide. Since 2014, he has released two editions of his reference book, Mastering Bitcoin. Vitalik Buterin, co-founder of Ethereum. He is known as one of the founders of Ethereum. Vitalik has spent seven years in the cryptocurrency space. In that time, he has helped shape the industry as we know it, founding Bitcoin magazine in 2011 before writing the Ethereum White Paper in late 2013.