Galsik is a fungoid doctor who lived on Rimtreader. You met him having a drink with Arkesia in the Sunset Avenue canteen, right before disaster struck.

He reappeared on Al'Tonzai, where you coaxed some information out of him regarding the "apocalypse microbe" R. grendel over drinks.

Galsik's Background

Galsik used to work full-time as a medical doctor aboard Rimtreader, though his employer is apparently the tech company Mercurial Statics. He was the one to provide Arkesia with the access key to dock on the night of 156,072-28.