Emily (The X-Files)

Emily Sim, often referred to simply as Emily, is a significant character in the fifth season of the science fiction television series The X-Files. She appears in the episodes "Christmas Carol" and "Emily." Emily is the biological daughter of Dana Scully, although Scully was unaware of her conception and birth due to her abduction and experimentation by extraterrestrial forces.

Emily is presented as a young girl with a terminal illness, which leads Scully to grapple with questions about her own faith and the nature of her abduction experience. The episodes explore themes of motherhood, loss, and the ethical implications of scientific experimentation. Emily's origins are shrouded in mystery, with suggestions that her genetic material may have been derived from Scully's ovum, but manipulated by alien technology.

Ultimately, Emily's condition worsens, and she dies. Her death has a profound and lasting impact on Scully, influencing her character development and her relationship with Fox Mulder throughout the remainder of the series. Emily's brief but impactful presence serves as a catalyst for Scully's personal and spiritual growth.