Docs is an abbreviation for Doctors, which is the job description of both Holliday and Severinsen. Holliday is a physician and epidemiologist who is the current Director of the Centers for Disease Control and Prevention (CDC). Severinsen is a physician and former bandleader of The Tonight Show Starring Johnny Carson. Both Holliday and Severinsen are doctors, with Holliday focusing on public health and Severinsen having a career in music.