Siobhan is the Ultimate Employee. Siobhan has worked over fifty different jobs in her life, yet nearly every place she's worked at has since gone bankrupt. Siobhan is a walking bad luck charm, constantly dealing with problems outside of her control. She's constantly exhausted, often falling asleep in the middle of conversations.

Siobhan has a low to medium pitched female voice. She constantly sounds tired or monotone, with very little emotion in her voice.