"What are you doing here?"

Frederica Sawyer, also known as Sawyer the Cleaner, is a young woman who specializes in corpse disposal in Roanapur. In addition to her regular job, Sawyer is a freelancer who partners up with her friends Shenhua and Lotton. She is also the titular character of the first official Black Lagoon spinoff series Dismemberment Galore! The Gore Gore Girl.

Sawyer is a young woman with a thin build, short dark-purple hair, a light complexion, a large horizontal scar across her throat, and vacant blue eyes. Outside work, she wears eye-shadows, red lipstick, a black choker with a cross pendant, and a gothic style of dress. The most common shirt that she wears is a short-sleeved purple shirt with a cross fleury across the chest. Additionally, she also wears a light-purple striped long-sleeved shirt, a dark plaid skirt with white frills, and knee-length black boots. On her ears, she has several ear piercings, and she has several cuts on her wrists as a result of self-harm.

When she is on the job for corpse disposal, she wears a surgical gown, surgical mask, and various personal protective equipment.

Sawyer is a sociopath who lacks remorse when she kills people with her chainsaw and exhibits various emotional issues. In general, she has a mellow demeanor about her, and she also suffers from depression. She has a vulnerable side, as shown by her blushing and smiling when she becomes the center of attention and in her response to losing her electrolarynx. She has also made morbid jokes, like when she drew jam-smeared bread as a metaphor for a mattress stained with human remains. Although she communicates with her voicebox, Sawyer can also communicate and get others' attention non-verbally via facial expressions, tickling, and tracing letters onto people's skin. She does not take her friendships for granted, as she has a close and personal bond with Shenhua and Lotton as well as a sister-like bond with her other friends Bunny the Undertaker and The Undertaker No. 2.

(One of the most underrated females in Black Lagoon 😔)