| Lizzie and Mika Samuels | |
|---|---|
| The Walking Dead characters | |
 Lizzie and Mika, as portrayed by Brighton Sharbino (left) and Kyla Kenedy (right) | |
| First appearance | "30 Days Without an Accident" (2013) |
| Last appearance | "What Happened and What's Going On" (2015) |
| Created by | Scott M. Gimple |
| Based on | |
| Portrayed by | Brighton Sharbino (Lizzie) Kyla Kenedy (Mika) |
| In-universe information | |
| Occupation | Assumed grade school students |
| Family | Ryan Samuels (father) Carol Peletier (adoptive mother) |
Lizzie and Mika Samuels are fictional characters from the fourth and fifth seasons of the AMC television series The Walking Dead portrayed by Brighton Sharbino and Kyla Kenedy, based on The Walking Dead comic book characters Billy and Ben, gender-swapped in-adaptation. Introduced in the fourth season premiere, Lizzie and Mika are two young siblings, and the daughters of Ryan Samuels. Following the death of their father, Carol agrees to raise the girls as her own children. The struggles of Lizzie and Mika are contrasted within the series as Lizzie, capable of taking a human life, is unable to kill walkers, instead believing she can communicate with them and have an emotional connection. Conversely, Lizzie's younger sister, Mika, willingly kills walkers, but her compassion for others prevents her from taking the life of another human being.
Lizzie's psychotic behavior and Mika's innocence are addressed in the second half of the season, with the revelation that Lizzie was feeding rats to the walkers at the prison. During "The Grove" episode, Lizzie murders Mika, and intends to allow her to reanimate. Having found this out, and knowing that she also planned to kill Rick's daughter, Carol made the decision to kill Lizzie. The scene sparked controversy among critics, who continue to refer to it as one of the darkest scenes and episodes of the series.