Lilian has built a solid career as a voice-over and dubbing artist for Portuguese-language projects. She's worked with major networks including Discovery Channel, MGM, Fox, Hallmark, Nickelodeon, Disney Channel, HBO, MTV, and others—most of her work aired on Brazilian cable and satellite TV. Beyond dubbing, she's also appeared on-camera in commercials across the US and internationally.

She's probably best known among anime fans for voicing Miyuki Hoshizora in the Portuguese dub of Smile PreCure!, where the character goes by Emily in the English adaptation Glitter Force.