Senwannus'gourkahipaff was the senior Elder of the Oswaft species. He was the eldest and largest living Oswaft of his time. The apostrophe in his name signified another dozen or so honorific syllables he was too modest to insist upon.
While set in his ways, he was willing to learn sabacc from Lando Calrissian and listen to his advice about how to deal with the Imperial blockade starving the ThonBoka nebula. He participated in the Battle of ThonBoka, surviving the guns of the Imperial Fleet. However, he was slain by Rokur Gepta's electromagnetic torpedo.