Cast of Only Murders in the Building: Who Plays Lucy and Character Guide

In Hulu's acclaimed comedy-mystery series Only Murders in the Building, the character of Lucy is portrayed by American actress Zoe Colletti. Introduced physically in Season 2, Lucy is the teenage daughter of Charles-Haden Savage's ex-girlfriend, Emma. Her deep bond with Charles and her intimate knowledge of the Arconia's secret passages make her a pivotal figure in the show's unraveling mysteries.

Who Plays Lucy in Only Murders in the Building?

The character of Lucy is brought to life by Zoe Margaret Colletti, a talented young actress whose career spans major feature films and high-profile television series. Before making her physically on-screen debut in Season 2 of Only Murders in the Building, Lucy existed primarily as a poignant memory in the life of Charles-Haden Savage (played by Steve Martin).

Charles frequently references Lucy during Season 1, describing the deep emotional void left behind when her mother, Emma, abruptly ended their seven-year relationship and took Lucy away. When Colletti joined the cast in Season 2, her performance grounded Charles's backstory in real, nuanced human emotion. Colletti portrays Lucy with a blend of modern teenage sharp wit, emotional vulnerability, and resourcefulness, allowing her to fit naturally alongside comedic legends Steve Martin and Martin Short, as well as pop star and actress Selena Gomez.

Colletti's casting added fresh youth dynamics to the Arconia's resident podcasting trio. Rather than serving purely as a plot device to move the mystery forward, Colletti's characterization establishes Lucy as an independent agent within the story—a teenager navigating her mother's unstable romantic life while seeking safety, connection, and familiar comfort with the father figure who truly cared for her.

Character Background: Who Is Lucy in the World of the Arconia?

To understand Lucy’s significance within the cast of Only Murders in the Building, one must examine the foundational history of Charles-Haden Savage’s personal life.

Years prior to the events of Season 1, Charles was in a long-term relationship with a woman named Emma. During their time together, Charles helped raise Emma's young daughter, Lucy, from early childhood into her pre-teen years. Charles formed a genuine father-daughter attachment to Lucy, teaching her how to make his signature omelets and bonding over childhood games.

1. Emma & Lucy move into Arconia with Charles
2. 6 Years of Family Life / Lucy discovers hidden Arconia passages
3. Abrupt Breakup on Cruise Ship / Emma takes Lucy away
4. Years of Estrangement & Charles's Isolation
5. Season 1: Text Contact Restored / Season 2: Lucy Returns in Person

The relationship imploded during a family vacation on a cruise ship. Emma felt overwhelmed by the relationship and decided to leave Charles, taking Lucy with her in the middle of the trip. The sudden loss devastated Charles, causing him to retreat into decades of emotional isolation inside his Arconia apartment, holding onto guilt and regret.

During Season 1, encouraged by his newfound friends Mabel Mora (Selena Gomez) and Oliver Putnam (Martin Short), Charles finally builds the courage to reach out to Lucy via text message. Their brief text exchanges lay the groundwork for Lucy’s physical arrival in Season 2, when she flees her mother’s latest wedding to seek refuge at Charles's apartment in New York City.

Storyline Impact: How Lucy Shapes Season 2's Mystery

Lucy’s arrival in Season 2 is far more than a sentimental family reunion; it directly drives the central murder investigation surrounding the death of Arconia board president Bunny Folger.

The Secret Passages of the Arconia

During her childhood spent running around the historic Arconia building, Lucy discovered something that even adult residents were unaware of: a complex network of secret passages and hidden passageways (passageways inside the walls) constructed originally by the building's original architect, architect Archibald Carter.

When Lucy unexpectedly turns up at Charles's apartment in Season 2, Episode 4 ("Here's Looking at You"), she reveals her knowledge of these catacombs. It turns out that on the night of Bunny Folger's murder, Lucy had secretly sneaked into the Arconia to visit Charles. While hiding inside the wall passages, she overheard the killer's struggle with Bunny and even saw the masked perpetrator escaping through the secret doors.

Key Plot Contributions by Lucy:

• Uncovering the Passageways: Lucy introduces Charles, Oliver, and Mabel to the hidden corridor behind Charles's bathroom wall, opening up an entirely new dimension of the Arconia to explore.
• Eyewitness Evidence: Lucy provides critical details about the killer's height, clothing, and voice, narrowing down the suspect list for the podcasters.
• Rescuing the Trio: During the building-wide blackout in Season 2, Episode 8 ("Hello, Darkness"), Lucy finds herself hunted inside the walls by the killer. Her knowledge of the layout proves instrumental in navigating the dark corridor network safely.
• Emotional Anchor for Charles: Lucy’s presence forces Charles to step out of his passive comfort zone, pushing him to protect his functional family and take personal risks to keep her safe.

Cast Dynamics and On-Screen Chemistry

The inclusion of Zoe Colletti in Only Murders in the Building created a unique dynamic within the main ensemble cast. The series relies heavily on intergenerational contrast, primarily between classic comedy veterans (Steve Martin and Martin Short) and millennial/Gen Z energy (Selena Gomez).

Colletti shares notable screen chemistry with Steve Martin. Their scenes balance comedic misunderstandings regarding modern teenage slang and social media with heartfelt moments regarding past abandonment. Furthermore, her scenes with Selena Gomez offer Mabel a mirror image of another young woman dealing with the complicated, sometimes dangerous history embedded within the Arconia's walls.

Key Cast & Character Breakdown: Only Murders in the Building

The cast of Only Murders in the Building features a rich mix of comedy icons, theater legends, and rising stars. Below is a detailed reference table showcasing where Lucy fits among the major and recurring cast members across the series.

Where Else Have You Seen Zoe Colletti? Filmography & Career Highlights

Before landing her role as Lucy in Only Murders in the Building, Zoe Colletti had already established an impressive acting resume in both film and television. Viewers recognizing her distinctive performance often recall her from several major projects across horror, drama, and comedy genres.

1. 2014: Annie (Tessie)
2. 2019: Scary Stories to Tell in the Dark (Stella)
3. 2020: Fear the Walking Dead (Dakota)
4. 2022: Boo, Bitch (Gia) & OMITB (Lucy)
5. 2023: The Family Plan (Nina)

1. Scary Stories to Tell in the Dark (2019)

Colletti played the lead role of Stella Nicholls in this horror film adaptation produced by Guillermo del Toro and directed by André Øvredal. Set in 1968, Colletti’s performance as a horror-obsessed teenager who uncovers a haunted notebook received widespread praise for anchoring the film's emotional heart and suspense.

2. Fear the Walking Dead (2020–2021)

In the AMC apocalyptic drama Fear the Walking Dead, Colletti joined the main cast in Season 6 as Dakota, the troubled younger sister (and secret daughter) of antagonist Virginia. Her complex, morally ambiguous role demonstrated her ability to handle dark, intense dramatic material.

3. Boo, Bitch (2022)

Colletti co-starred alongside Lana Condor in the Netflix limited comedy series Boo, Bitch. She portrayed Gia, the best friend of a high school senior who believes she has become a ghost. The role highlighted Colletti's sharp timing in teen comedy formats.

4. Annie (2014)

Early in her career, Colletti appeared in the 2014 feature film adaptation of Annie, playing Tessie, one of the foster kids living alongside Annie (Quvenzhané Wallis) under the care of Miss Hannigan (Cameron Diaz).

5. The Family Plan (2023)

Colletti starred as Nina Morgan in the Apple TV+ action-comedy film The Family Plan, acting alongside Mark Wahlberg and Michelle Monaghan as the teenage daughter of an ex-assassin living under cover in suburbia.

Frequently Asked Questions

Who plays Lucy in Only Murders in the Building?

Lucy is portrayed by American actress Zoe Colletti. She made her first physical appearance in Season 2, Episode 4, titled "Here's Looking at You," after being mentioned throughout Season 1.

What is Lucy's relationship to Charles-Haden Savage?

Lucy is the teenage daughter of Emma, Charles's ex-girlfriend. Charles lived with Emma and helped raise Lucy for six years during her childhood. Although Charles and Emma broke up, Charles always considered Lucy to be like a daughter to him, and they eventually reconnected.

How does Lucy know about the secret passages in the Arconia?

While living in the Arconia building as a child with Charles and her mother, Lucy explored the building extensively and stumbled upon hidden doors inside the walls. These passageways were built by the original architect, Archibald Carter, allowing someone to travel unseen between apartments throughout the building.

Does Lucy appear in every season of Only Murders in the Building?

Lucy is mentioned heavily as part of Charles's backstory in Season 1, but actress Zoe Colletti physically joins the cast as a recurring guest star in Season 2. Her appearances in subsequent seasons depend on the focus of the storyline, as her character primarily lives outside of New York City with her mother.

What key clues does Lucy provide in Season 2?

Lucy reveals the existence of the secret passageways to Charles, Mabel, and Oliver. Additionally, because she was hiding inside the walls of the Arconia on the night of Bunny Folger's murder, she heard the killer's voice and witnessed their escape path, providing crucial physical descriptions to help the investigation.

Conclusion & Viewer Next Steps

Zoe Colletti’s performance as Lucy added significant emotional depth to Only Murders in the Building, helping to humanize Charles-Haden Savage while introducing critical narrative elements like the Arconia's secret passages. For fans looking to further explore the cast and creator details of the series, consider the following next actions:

1. Rewatch Season 2, Episode 4 ("Here's Looking at You"): This episode marks Zoe Colletti’s physical debut as Lucy and introduces the secret wall passages that define the Season 2 mystery.
2. Explore Zoe Colletti’s Other Works: View her dramatic performance in Scary Stories to Tell in the Dark or her comedic role in Netflix’s Boo, Bitch to see her acting versatility across genres.
3. Check Official Production Credits: For complete, up-to-date casting details and episode listings across all seasons, consult official streams on Hulu or listings on the Internet Movie Database (IMDb).