Meet the Cast of ‘Stillwater Season 4’

The gentle wisdom of Stillwater returns! Apple TV+’s beloved, award-winning series Stillwater is back for a heartwarming fourth season, bringing more mindful moments and heartfelt lessons to young viewers and families. Next-door neighbor Stillwater, the wise and serene panda, continues to be a beacon of tranquility for kids Addy, Michael, Karl, and Maya as they navigate the everyday ups and downs of childhood – from friendship hiccups and trying new things to understanding big feelings and solving small problems.

Through beautifully simple stories inspired by Zen tales, Stillwater offers his young friends (and the audience) gentle guidance, practical tools, and profound perspectives. Season 4 introduces new neighbors and adventures, expanding the loving community around Blueberry Hill. With its signature calming animation, soothing score, and deeply empathetic storytelling, “Stillwater” remains an essential oasis of kindness and emotional intelligence. Stream new episodes starting August 1, only on Apple TV+.

Meet the Voices of Blueberry Hill:

1. James Sie as Stillwater / Ren

James Sie, an accomplished voice actor (“Jackie Chan Adventures,” “The Sandman”), masterfully embodies the tranquil heart of the series as Stillwater. His warm, unhurried, and deeply soothing delivery perfectly captures the panda’s infinite patience, quiet wisdom, and gentle humor, making Stillwater a truly comforting presence. Sie also voices Ren, Stillwater’s helpful nephew, adding a touch of youthful energy while maintaining the character’s inherent kindness.

Sie’s performances are foundational to the show’s calming magic. He conveys profound empathy and timeless wisdom through subtle vocal shifts, making Stillwater’s lessons feel personal and accessible to children, while Ren offers a relatable bridge for younger viewers learning alongside him.

2. Eva Ariel Binder as Addy

Eva Ariel Binder brings genuine curiosity, warmth, and thoughtful energy to Addy, the observant and caring big sister. Binder captures Addy’s gentle leadership, her moments of contemplation, and her eagerness to learn from Stillwater, making her a wonderfully relatable anchor for the child characters.

Her portrayal highlights Addy’s emotional intelligence as she navigates sibling dynamics with Karl and friendships with Michael and Maya. Binder’s voice work beautifully reflects a child processing experiences and applying Stillwater’s lessons with sincerity and care.

3. Tucker Chandler as Michael

Tucker Chandler voices Michael, Addy and Karl’s energetic, imaginative, and sometimes impulsive neighbor and best friend. Chandler infuses Michael with boundless enthusiasm, infectious curiosity, and a playful spirit, perfectly capturing the joyful exuberance of childhood.

Chandler excels at showing Michael’s journey of discovery – his initial bursts of excitement, moments of frustration when things don’t go as planned, and his growing ability to pause, reflect, and find creative solutions with Stillwater’s gentle guidance, showcasing genuine character growth.

4. Judah Mackey as Karl / Baby Bunny

Judah Mackey voices the adorable and earnest Karl, Addy’s younger brother. Mackey perfectly embodies Karl’s sweet nature, his occasional struggles with patience or sharing, his delight in simple things, and his deep affection for Stillwater and his friends. Mackey also voices the playful Baby Bunny, adding another layer of innocent charm.

Mackey’s performance is key to the show’s depiction of early childhood. He captures Karl’s wide-eyed wonder, his need for reassurance, and his gradual understanding of emotions and social interactions, making Karl’s learning moments both authentic and endearing.

5. Nara Thompson as Koo / Fox Neighbor

Nara Thompson voices Koo, Stillwater’s mindful young niece, bringing a delightful blend of youthful innocence and a naturally calm, observant nature inherited from her uncle. Thompson also voices a new Fox Neighbor in Season 4, expanding the community.

As Koo, Thompson offers a different but equally valid perspective on mindfulness – a child naturally embodying presence and curiosity. Her interactions with Stillwater and the other children add enriching layers to the show’s exploration of finding peace and joy in the everyday.

6. Sydney Thomas as Maya / Mouse

Sydney Thomas voices Maya, a kind, artistic, and sometimes shy friend of Addy and Michael. Thomas captures Maya’s thoughtful observations, her creative spirit, and her quiet courage as she steps out of her comfort zone. Thomas also voices the timid but friendly Mouse.

Thomas’s portrayal highlights introverted strengths. Maya’s journey often involves finding her voice, expressing her feelings, and discovering confidence through creativity and Stillwater’s supportive presence, offering valuable representation for thoughtful, sensitive children.

7. Kari Wahlgren as Telly / Mama Bird

Versatile voice acting legend Kari Wahlgren (“Rick and Morty,” “Phineas and Ferb”) brings her talent to Telly, a friendly and sometimes chatty bird neighbor, and the nurturing Mama Bird. Wahlgren adds warmth and gentle humor to the community around Blueberry Hill.

Her characters often provide moments of light-heartedness or small, relatable observations about community and caring for others, enriching the tapestry of relationships and perspectives that make Stillwater’s neighborhood feel alive and interconnected.

8. Isla Farris as Asha / Pratima

Isla Farris voices Asha and Pratima, new characters joining the Season 4 cast. Farris’s involvement suggests characters who bring fresh perspectives, perhaps exploring different cultural backgrounds or new facets of mindfulness and friendship within the expanding world of the show.

These new additions reflect the season’s theme of welcoming new neighbors and learning from diverse experiences, further emphasizing Stillwater’s message of kindness, understanding, and interconnectedness.

9. Fryda Wolff as Antonia / Cosmo Kora

Fryda Wolff (“The Dragon Prince,” “Star Wars: Visions”) lends her voice to Antonia and Cosmo Kora. These characters, whether human or animal neighbors, will contribute their unique personalities and challenges to the gentle stories of Season 4.

Wolff’s range allows her to create distinct voices that add depth and variety to the community interactions, ensuring each episode offers new encounters and opportunities for learning and connection alongside familiar faces.

10. Fred Tatasciore as Bear / Father

The prolific Fred Tatasciore (“Avengers Assemble,” “Kung Fu Panda” franchise) voices Bear, a larger neighbor whose presence might initially seem imposing but likely reveals a gentle nature, and the children’s kind and supportive Father.

Tatasciore masterfully uses his deep, resonant voice to convey warmth, safety, and paternal care as the Father. As Bear, he might explore themes of perception, gentleness despite size, or finding inner calm, aligning perfectly with the show’s ethos of looking beyond appearances.

Embrace Mindfulness and Kindness! “Stillwater” Season 4 continues to be a gentle, invaluable resource for nurturing emotional well-being in children. Stream all-new episodes starting August 1, 2025, exclusively on Apple TV+.