Isam Helewa was a master of rhythmic breathing techniques who took Julian Bashir under his wing while he was in college. Bashir later demonstrated one of these techniques (Bellows Breath) for Major Kira in an attempt to find common ground with her. (DS9: "Crossover")

This character was only mentioned in dialogue.
According to the script, Isam Helewa was pronounced as "EE-sahm HEHL-uh-wah".