The rule of the Qajar dynasty was a vibrant period for the Iranian taʿziyeh tradition; the genre’s anonymous dramatists not only developed the verse of the central plays of the Karbala cycle but innovated new narrative content. This study investigates one such innovation, the curious appearance of two new characters in the climactic play The Martyrdom of Imam Husain. They are the Dervish of Kabul and Sultan Qais of India, both of whom Husain encounters shortly before his martyrdom and neither of whom were previously mentioned in historical literature or religious traditions pertaining to Karbala. Through analysis of fifteen taʿziyeh renditions of Husain’s martyrdom dating from 1204/1790 to the 1950s, including rare manuscripts, this study provides a date window for the incorporation of these characters and argues that they were added to complete a trilogy of trials faced by Husain at Karbala. It also traces their literary origins and considers their social significance.