Hoom Garaf, a Chevin, held the rank of major within the Confederacy of Independent Systems throughout the Clone Wars conflict, spanning from 22 BBY to 19 BBY. In the course of the Third Battle of Aefao, his T-series tactical droid executed him following a dispute. This subsequent firefight within the Separatist forces' rearguard ultimately enabled the Galactic Republic to secure a win on the world of Aefao.
The character of Hoom Garaf received a mention in The Essential Guide to Warfare, a reference book from 2012 written by Jason Fry together with Paul R. Urquhart.