De Lisle is a Tactical Doll (T-Doll) featured in the mobile strategy game Girls' Frontline. Based on the real-life De Lisle carbine, she is depicted as a calm and composed agent specializing in stealth and silenced operations. In the game's story, De Lisle often takes on reconnaissance or infiltration missions, using her expertise to support her team from the shadows. Her quiet demeanor and efficiency make her a valuable asset among the T-Dolls, contributing significantly to the player's squad in both narrative and gameplay.