Liliana Mumy: Biography, Career, Movies, Family and Life

Liliana Mumy is an American actress and voice actress who became familiar to audiences at a young age through popular family movies and animated television shows. Born on April 16, 1994, in San Marcos, California, she grew up in an entertainment family as the daughter of actor and musician Bill Mumy. Over the years, Liliana built a career that moved naturally between live-action acting and voice performances. She is particularly recognized for playing Lucy Miller in The Santa Clause 2 and The Santa Clause 3: The Escape Clause, Jessica Baker in Cheaper by the Dozen and Cheaper by the Dozen 2, and for voicing characters in animated franchises such as Lilo & Stitch, Chowder, and The Loud House.

Who Is Liliana Mumy?

Liliana Berry Davis Mumy is the full name of Liliana Mumy. She began working professionally as a child and has remained associated with acting and voice work for more than two decades. Her career officially began in the early 2000s, when she appeared in television productions before moving into recognizable movie roles and animated projects. According to entertainment databases, her professional career dates back to 2001.

What makes Liliana’s career notable is the range of projects she has worked on. Unlike many child actors whose careers are strongly associated with one major role, Mumy developed experience in several areas. She appeared in sitcoms, family films, animated movies, television series, and web animation. Her voice work became especially important as she grew older, allowing her to continue acting even when she was no longer appearing primarily as a child performer.

Early Life and Family Background

Liliana Mumy was born in San Marcos, California, on April 16, 1994. Her father is Bill Mumy, an actor, musician, writer, and voice performer who became famous as a child actor and is particularly associated with classic science-fiction television. Her mother is Eileen Joy Mumy, who has been described as a childbirth educator. Liliana also has a brother, Seth Mumy, who worked as a child actor.

Growing up around the entertainment industry gave Liliana an early connection to acting, but her career developed through her own work. One memorable family connection appeared on The Twilight Zone revival, where she acted alongside her father in the episode “It’s Still a Good Life.” This was an unusual opportunity because the story allowed father and daughter to appear together in a continuation of a classic television concept associated with Bill Mumy’s earlier career.

Liliana Mumy’s Acting Career

Liliana Mumy began appearing on television in 2001. One of her early credited roles was Samantha Tanner in an episode of Scrubs. She subsequently appeared in programs including That ’70s Show, Strong Medicine, and My Wife and Kids. These early appearances helped establish her as a young performer capable of working in different television formats.

Her transition into major family entertainment happened quickly. She appeared in The Santa Clause 2 as Lucy Miller in 2002, a role she later reprised in The Santa Clause 3: The Escape Clause. She then became Jessica Baker in Cheaper by the Dozen and its 2005 sequel. These films placed her alongside established performers and gave her considerable exposure to mainstream family audiences.

Her film credits also include Snow Buddies, Space Buddies, Santa Buddies, Barnyard, Howl’s Moving Castle, Mulan II, and The Loud House Movie. Her work has therefore covered both live-action family entertainment and animated productions.

Her Role in The Santa Clause Movies

One of Liliana Mumy’s best-known live-action roles is Lucy Miller in The Santa Clause 2 and The Santa Clause 3: The Escape Clause. In the franchise, Lucy is connected to the Miller family and becomes part of the expanding group of characters surrounding Tim Allen’s Scott Calvin.

The role was important because The Santa Clause franchise had already established itself as a recognizable Christmas property. Mumy’s appearance in the second and third films introduced her to audiences who regularly watched family-oriented holiday movies. The third film, released in 2006, continued the story with Lucy as part of the Christmas gathering involving Scott Calvin, Carol, Laura, Neil, Charlie, and other characters.

The franchise later returned as the Disney+ series The Santa Clauses. Although the original films remain an important part of Mumy’s career history, the later television continuation focused on the next chapter of Scott Calvin’s life.

Liliana Mumy as a Voice Actress

Voice acting became one of the most important parts of Liliana Mumy’s career. She voiced Mertle Edmonds in the Lilo & Stitch franchise, including Stitch! The Movie, Lilo & Stitch: The Series, Lilo & Stitch 2: Stitch Has a Glitch, and Leroy & Stitch. Mertle is one of Lilo’s recurring rivals, making the character particularly recognizable among fans of the animated franchise.

Mumy also voiced Twinkle in Higglytown Heroes and Human Kimberly in Catscratch. Another significant animated role came with Chowder, where she provided the voice of Panini. These projects demonstrated her ability to create distinctive characters through voice alone rather than relying on physical performance.

Her voice-acting credits continued with projects such as Bravest Warriors, where she voiced Beth, and Nickelodeon’s Winx Club, where she voiced Roxy. She also became closely associated with Leni Loud in The Loud House. Her voice work as Leni expanded into The Loud House Movie, No Time to Spy: A Loud House Movie, and later A Loud House Christmas Movie: Naughty or Nice.

Liliana Mumy and The Loud House

The Loud House represents an important later stage of Mumy’s career. She voices Leni Loud, one of the central Loud family siblings. The animated series premiered on Nickelodeon and became a major part of her professional identity as a voice performer.

Her involvement with the franchise has extended beyond the original television series. Mumy reprised Leni in The Loud House Movie and other related productions. Her continued participation illustrates how voice actors can remain connected to a character for many years as an animated franchise grows into movies and special projects.

Personal Life and Marriage

Liliana Mumy married Ben Perlmutter in September 2023. The couple had announced their engagement in December 2021. Public entertainment sources have reported that they welcomed their first son, Nathan Oliver Perlmutter, in November 2023. More recent biographical reports also state that the couple welcomed a second son in January 2026.

Mumy has also been associated with fitness outside her acting career. Entertainment coverage has reported that she has worked as an instructor for Barry’s Bootcamp in Los Angeles. This has given her a professional interest outside traditional film and television acting.

Liliana Mumy’s Age

Liliana Mumy was born on April 16, 1994. As of October 2026, she is 32 years old. She has spent more than two decades working in entertainment, beginning as a child performer and continuing into adult voice and screen acting.

Her long career is particularly interesting because she successfully moved from child roles into a different phase of entertainment without being limited to the projects that first made her famous. Her voice-acting credits have helped maintain her presence in animation long after her most recognizable childhood movie appearances.

Liliana Mumy’s Movies and TV Shows

Some of Liliana Mumy’s notable credits include:

• The Santa Clause 2 — Lucy Miller
• The Santa Clause 3: The Escape Clause — Lucy Miller
• Cheaper by the Dozen — Jessica Baker
• Cheaper by the Dozen 2 — Jessica Baker
• Lilo & Stitch: The Series — Mertle Edmonds
• Higglytown Heroes — Twinkle
• Chowder — Panini
• Catscratch — Human Kimberly
• Bravest Warriors — Beth
• The Loud House — Leni Loud
• The Loud House Movie — Leni Loud
• No Time to Spy: A Loud House Movie — Leni Loud
• A Loud House Christmas Movie: Naughty or Nice — Leni Loud

These credits show how her career has developed across different forms of entertainment rather than following only one path.

Does Liliana Mumy Have a Net Worth?

There is no reliable, authoritative public figure that establishes Liliana Mumy’s exact current net worth. Various celebrity websites may publish estimates, but these numbers are generally not accompanied by verified financial records, contracts, tax documents, or complete information about assets and income.

For that reason, it is more accurate to discuss her career achievements rather than present an unverified net-worth number as fact. Her income has likely come from acting, voice acting, television and film work, and other professional activities, but the exact amount is not publicly confirmed.

Why Liliana Mumy Remains Recognizable

Liliana Mumy has maintained a recognizable career because her work spans several generations of family entertainment. Viewers who remember her from Cheaper by the Dozen or The Santa Clause films may know her later through Lilo & Stitch, Chowder, Bravest Warriors, or The Loud House.

Her career also demonstrates how voice acting can provide continuity for performers. While live-action roles may change as an actor grows older, an animated character can remain part of a performer’s career for many years. Mumy’s work as Leni Loud is an example of this long-term relationship between performer and character.

Conclusion

Liliana Mumy is an American actress and voice actress whose career began during childhood and developed across movies, television, and animation. Born in California in 1994, she grew up in a family connected to the entertainment industry through her father, Bill Mumy. Her early screen roles in The Santa Clause and Cheaper by the Dozen helped introduce her to mainstream audiences, while her later voice work expanded her career considerably.

From Mertle Edmonds in Lilo & Stitch and Panini in Chowder to Leni Loud in The Loud House, Mumy has created a wide range of animated characters. Her continued work in entertainment, combined with her family life and fitness career, has made her more than just a former child actress. She remains an active figure in voice acting and family-oriented entertainment, with a career spanning more than 20 years.