Blacklist fans have been wondering about Liz Keen's parentage from the jump, and after the series' midseason finally, many were left asking, "If not Red, then who?"

Following the death of her adoptive father Sam (William Sadler), Liz (Megan Boone) is left with a slew of questions, none of which seem to have an easy answer. As the show delves deeper into the FBI profiler's past, Liz is developing a relationship in the present that may pull back the veil on her younger years.

"Anslo Garrick - Part 1" and "Part 2" saw in interesting change come over the agent. Keen is quickly becoming much more adept in the field, ever more confident when it comes to pulling the trigger. According to Boone, her actions in the last two episodes stem from her strong desire for the truth.

"Crossing a line in her morality is getting easier because it's based on her need to survive because she needs answers from Red," Boone explained in a Behind the Blacklist feature for "Anslo Garrick - Part 2." "So that's what's changing in her relationship with Red...she doesn't have her adoptive father any more to give her answers, she has to get them from Red."

Since Red recently stated that he is not her father, Liz is still left to wonder where she came from and what was the significance of the fire she was in as a preschooler.

"She doesn't know about a portion of her life prior to being four years old," Boone explained in a Behind the Blacklist feature for "Anslo Garrick - Part 1." "The man who died, Sam, may have the answers but since he's gone now there's a lot of questions about who I am and what my life really is about."

The answers to Liz's questions may be far off, but viewers will find out more about the girl in Red's picture when the NBC drama returns in January. Named Lucy Brooks, the girl's story will be intertwined with Tom's (Ryan Eggold), according to E!.

The Blacklist airs Mondays at 10 p.m. on NBC. Click the video below to see the death of Sam and his mysterious connection to Liz.

Tags: The Blacklist nbc television