A former employee of Vladimir Taltos. Glowbug got his nickname from the way his blue eyes light up when he's interested in a prospect. He is very interested in combat and favours the long-handed mace. His personality is described as generally pleasant and occasionally jovial. His real name is unknown.
Glowbug was one of Vladimir's steadiest enforcers and he survived being in the Jhereg at least up to the point that Vladimir turned a portion of his business over to Kragar. Presumably, Glowbug is still working in Vladimir's old organization under either Kragar or Cawti. However he was not seen when Vladimir returned to Adrilankha and visited his gang many years later.
"Good to see you, boss. I was beginning to think you were a myth."