"I had so much fun this weekend," reads a post shared to Fleming's Instagram account following an appearance at Wizard World New Orleans. "Loved hanging out with all of these amazing people and my #twdfamily!"
Fleming now stars as Judith after a six-year time jump that followed the apparent "death" of father Rick Grimes (Andrew Lincoln), who once admitted in a Season Seven episode he knew Judith was born of the affair between Shane and Lori Grimes (Sarah Wayne Callies).
"I know Judith isn't mine. I know it. I love her. She's my daughter. But she isn't mine," Rick confessed to lover Michonne (Danai Gurira), who has since fully embraced Judith as her own daughter.
"I had to accept that. I did, so I could keep her alive. I'll die before she does, and I hope that's a long time from now so I can raise her, protect her, and teach her how to survive. This is how we live now. I had to accept that too, so I could keep everyone else alive."
Bernthal earlier joked at a convention appearance in 2013 Judith was "100% Shane's baby," adding the girl was "going to have a big old busted nose and giant-ass ears."
It was later determined by Family Diplomacy, a Tampa Bay-based Collaborative Law firm, that Rick would be considered Judith's legal father despite her being Shane's biological offspring as result of Judith's being born during an intact, albeit strained, marriage between Rick and Lori.
If Shane and Lori's affair happened before apocalypse, the group noted, Rick would then be entitled to making major decisions concerning the child and would be responsible for her financial support.
When an injured and blood-leaking Rick hallucinated Shane in Season Nine episode "What Comes After," Shane cheekily taunted his old best friend, asking, "How is my baby girl, by the way? Got my eyes, don't she?"
Michonne later gave birth to Judith's brother, RJ (Antony Azor), or Rick Junior, Rick and Michonne's first shared biological child.
Judith has an important role to play in the future of the series and will assume some of the comic book stories that otherwise would have belonged to late half-brother Carl (Chandler Riggs), including sharing an interesting dynamic with the formerly jailed Negan (Jeffrey Dean Morgan).
The Walking Dead Season Nine returns with new episodes Sunday, February 10 on AMC.