He was an actor in Rome who, while taking part in a performance that ridiculed Christian Baptism, suddenly sensed the meaning of this sacred and beautiful liturgy and was sacramentally baptized. He was then martyred under Diocletian. Another noted actor who died under the same circumstances was Saint Porphyry, whose feast is September 15, and who was martyred in 362 by Julian the Apostate.
Saint Genesius (ca. 1451 – 1485), by Cristoforo Moretti (source)
