Otto was a member of the the Black Company from before the start of the series to before Soldiers Live. He is rarely seen without his fellow Company member and eternal sidekick Hagop. He, like Hagop, is well known for surviving every fight he gets into but always receiving at least a minor wound. He was one of the last survivors of the "Old Crew" who had sailed aboard the imperial flagship, The Dark Wings, from Beryl, across the Sea of Torments, to Opal.

Otto became one of the Captured imprisoned with in the Cave of the Ancients. After being freed he died in Hsien of natural causes along with Hagop.