Clarissa Osbourne

"Spoilers," - River Song
Rissa Osbourne was born on July 30th, 1998. She grew up moving around in foster homes before settling with the Osbournes. While she doesn't exactly like her foster parents, she is very close with her foster family, Isabelle, Emma, Jacob, Toby, and Jamie. She is married to Loki Laufeyson and is the Queen of Asgard. She is an Asgardian turned Human, and she has powers of prophecy and healing, as well as superior physical and fighting skills. She is also known as:  The Girl Who Knew Too Much, Freya, Loki's Lover, and Queen of Asgard.

The Girl Who Knew Too Much
One day, when she was fifteen years old, she heard the Tardis noise, which she instantly recognized from one of her favorite shows. Thinking that her older sister Isabelle was playing a trick on her, she spotted the Tardis and touched it. Surprised to see that it as real, she entered and found a version of the Doctor directly after the Ponds' death. She then realized that she was a version of Clara (Clarissa - Clara and Rissa) and she became the Doctor's companion, soon journeying into fictional universes as well.