Marcelo Tristão Athayde de Souza (born November 10, 1959), better known as Marcelo Tas, is a Brazilian director, writer, actor and television presenter.Host of PROVOCA and commentator for Jornal da Cultura of TV Cultura. He works as a speaker and develops series on communication and innovation for companies, in 2020 he made 103 participations in events. He is also a professor at the Domestika platform and works in corporate training.He was the main host of Torcedores.com for the coverage of the 2018 Soccer World Cup in Russia. Before: children's series "Ra-Tim-Bum" (TV Cultura - Brazil); “Ernesto Varela, the Reporter” (MTV Brasil, Gazeta, SBT, TV Record-Brasil); Telecurso (TV Globo / Roberto Marinho Foundation); and anchor for 7 years of the comedy program CQC (Band).