Eileen Montgomery is a British voice actress and singer known for her versatile vocal range and work across animation, video games, and online media. She was born on July 10, 1990, and is based in Bedfordshire, England. Her professional training is extensive; she attended the StageCoach Theatre School for ten years, was a member of the National Youth Theatre, and earned a First Class BA Honors degree in Musical Theatre from the University of Chichester. She is a registered member of British Equity, the performers' union.

Montgomery's foray into professional anime dubbing includes a significant leading role. In 2019, she was announced as the voice of the titular character, Emma, for Nozomi Entertainment's English dub of the anime series Emma: A Victorian Romance and its second season, Emma: A Victorian Romance Second Act. The dub was produced under the direction of ADR director Joe Digiorgi at Headline Studios. This marked one of her early prominent roles in the anime industry. Around the same period, she also voiced the character Nonoka in the Mitsuboshi Colors dub.

Beyond these specific anime credits, her voice acting career is diverse and well-established, particularly in the video game and online animation sectors. She is recognized for her role as Lady Tethys in the Xbox Arcade and PC game Dust: An Elysian Tail, and as Queen Vanessa and Mustache Girl in the PC game A Hat in Time. She has also contributed voices to games such as Apotheon.

Montgomery has a significant presence in online content creation, operating under the online alias EileMonty. She established her YouTube channel in 2011, building a substantial subscriber base through voice-comedy videos, song covers, and original content. This online presence led to numerous collaborations within various fan communities. She has voiced characters in popular abridged series, including Miss Martian in Young Justice Abridged and Junko Enoshima in a Danganronpa Abridged project. Within the Brony fandom, she is known for her roles in various fan animations, such as Bubbles in Double Rainboom and Button's Mom in Button's Adventures, as well as for her musical collaborations. She has also lent her voice to the web animation series TOME as Bailey and to the Rainimator Fractures series as the character Stella.

A classically trained singer with a three-octave vocal range, Montgomery's skills extend to live performance, with experience in musical theatre and British pantomime. In 2024, she transitioned her public-facing work to new stage names, using MontyVocals for voice acting and sound creation and Miss Ladybard for her original music, while her former online handle, EileMonty, was phased out.