Stillwater

Premise and format

Each episode centers on one of the three siblings, who are described as typical kids with typical kid challenges, meaning that even small things can feel insurmountable. When a child experiences something that stirs an emotional response, Stillwater uses parables to calmly guide the child toward a better understanding of how to cope^{1 • 9}. Through his example, stories, and gentle humor, he gives the children a deeper understanding of their feelings and tools for facing day-to-day challenges, while opening their eyes to the quiet wonders of the world around them¹.

The series teaches mindfulness explicitly. Episodes blend everyday childhood problems with breathing exercises, mindful moments, and calm storytelling³. Stillwater's teachings incorporate Buddhist ideas such as mindfulness, awareness of the present moment, and calm within, while his way of life shows Chinese cultural touches, seen in everything from how his house is designed to the gardens and koi pond it contains^{10 • 9}.

Visual approach. The Guardian's review noted that the series forges an aesthetic of its own by including animation-within-the-animation segments that illustrate Stillwater's fables¹¹. Common Sense Media's reviewer, Emily Ashby, described the show as gorgeously animated, set to calming music, and praised its intentional pace, saying it teaches lessons without hitting audiences over the head with them⁹.

Cast and characters

James Sie, a voice actor whose credits include the Kung Fu Panda and Avatar: The Last Airbender television series, voices Stillwater². The siblings are voiced by Judah Mackey (Karl), Eva Ariel Binder (Addy), and Tucker Chandler (Michael)⁵. Stillwater's niece Koo, also a giant panda, is voiced by Nara Thompson⁹.

Common Sense Media notes a representational asymmetry in the adaptation: the three central siblings are White and human, while the Chinese characters Stillwater and Koo are giant pandas, and the show is filtered through a White American lens with some cultural clichés. Supporting characters include Addy's best friend Maya, a Black character voiced by Black actress Sydney Thomas, and voice actors generally reflect their on-screen ethnicities; Chinese people were involved in the production in direction, music, and art direction⁹.

Seasons

Season 1 premiered December 4, 2020². Season 2 followed in March 2022 and season 3 in May 2023⁸. Season 4 became available on Apple TV+ on August 1, 2025⁶. Apple announced the fifth season in July 2026, premiering with five new episodes on Friday, August 21, 2026⁴. Each episode pairs two segments, so Apple's episode guide lists five season 5 episodes with titles such as "Addy's Break/Puzzled" and "The New Friend/Panda Scouts", while databases that index individual segments count ten^{17 • 18}.

Season 5 content. Executive producer Rob Hoegee described the fifth season as tackling the hardest subjects the show has attempted: it introduces Marcus, a new neighbor on the autism spectrum, includes an episode in which the group finds a bird that has died and discusses loss, and hands the comforting role over to the kids themselves. The three young voice actors have aged six years on screen over the course of the series¹⁵. The season finale, "The New Friend/Panda Scouts," aired August 21, 2026¹⁷.