What did Saint Genesius do to become a saint?

Genesius was an actor who worked in a series of plays that mocked Christianity. One day while performing in a work that made fun of Baptism he received sudden wisdom from God, realized the truth of Christianity, and had a conversion experience on stage. He announced his new faith, and refused to renounce it, even when ordered to do so by emperor Diocletian. He was beheaded for these actions about the year 303 in Rome. Martyrdom is usually considered as sufficient evidence for sainthood.