Seussical Jr Cast List and Character Breakdown

Teton Music provides this Seussical Jr cast list to help school directors review roles, plan auditions, and choose the right Broadway Junior materials for their students.

Quick Details for Schools

• Cast Size: Medium (11 to 20 performers)
• Cast Type: Children
• Dance Requirements: Standard
• Best For: Schools wanting imaginative storytelling, colorful ensemble work, flexible casting, and strong featured roles

Planning auditions? Schools trust Teton Music for fast, reliable Broadway Junior ShowKit delivery and helpful support before production begins.

Quick Casting Insight: Seussical Jr works best when you have a strong JoJo, a fearless Cat in the Hat, a heartfelt Horton, and ensemble performers willing to fully commit to imaginative movement and larger-than-life characters.

JoJo / Boy
JoJo is a thinker with a huge imagination. Whether awkward, rambunctious, or lonely, JoJo’s “Thinks” constantly get him into trouble. Over the course of the story, he learns responsibility and the importance of using imagination for good. Cast one of your strongest singers and actors in this important role.
Gender: Any | Vocal range: Ab3–B4

The Cat in the Hat
The Cat in the Hat is the essence of mischief, imagination, and fun. The Cat drives the storytelling and should feel physically agile, improvisational, and comfortable interacting with the audience. Cast a confident comedic actor with strong rhythm and stage presence.
Gender: Any | Vocal range: Bb3–D5

Horton the Elephant
Horton is a gentle giant with a huge heart and unwavering loyalty. He always tries to do the right thing, even when the world doubts him. This role requires one of your strongest singers and actors.
Gender: Male | Vocal range: A2–E4

Mr. Mayor
Mr. Mayor is JoJo’s concerned but loving father. He wants the best for his son while trying to guide him toward responsibility. Cast a good singer who works naturally with Mrs. Mayor.
Gender: Male | Vocal range: C3–E4

Mrs. Mayor
Mrs. Mayor deeply loves JoJo but struggles to understand his imagination. She should pair naturally with Mr. Mayor and contribute warmth and emotional grounding to Whoville.
Gender: Female | Vocal range: A3–Bb4

Gertrude McFuzz
Gertrude McFuzz is insecure about her one-feather tail and longs for Horton’s attention. Throughout the show she grows into a more confident and self-assured character. Cast a strong actress and excellent singer with emotional depth.
Gender: Female | Vocal range: F#3–Eb5

Mayzie La Bird
Mayzie La Bird is glamorous, self-centered, and larger than life. Though selfish, she ultimately realizes Horton would make a better parent for her egg. Cast a performer with strong vocals, confidence, and huge stage personality.
Gender: Female | Vocal range: G#3–Eb5

Wickersham Brothers
The Wickersham Brothers, including Wickersham 1, Wickersham 2, and Wickersham 3, are mischievous pranksters who enjoy teasing Horton and causing trouble. Cast strong movers who work well together while still creating unique personalities.
Gender: Male | Vocal range: Ab2–B3

Bird Girls
The Bird Girls, including Bird Girl 1, Bird Girl 2, and Bird Girl 3, know everything happening in the jungle and support Mayzie throughout the show. Cast performers who are excellent singers, movers, and ensemble actors.
Gender: Female | Vocal range: A3–B4

Sour Kangaroo
Sour Kangaroo is loud, confident, brassy, and unapologetically opinionated. She is not cruel, just bold and honest. Cast a powerhouse singer and fearless actor who can command the stage.
Gender: Female | Vocal range: Bb3–Eb5

Young Kangaroo
Young Kangaroo is Sour Kangaroo’s feisty daughter. Though smaller, she has just as much personality and attitude as her mother. Cast a strong young actor who pairs naturally with Sour Kangaroo.
Gender: Female

Judge Yertle the Turtle
Judge Yertle presides over Horton’s trial at the end of the show. This featured role works well for a newer performer with good stage presence and vocal confidence.
Gender: Any | Vocal range: F3–F5

Vlad Vladikoff
Vlad Vladikoff is the black-bottomed eagle who flies away with the Whos. Though brief, the role should make a strong impression through bold physical acting.
Gender: Male

The Grinch
The Grinch makes a fun cameo appearance in Seussical Jr. Cast a strong comedic actor and singer who can enjoy the audience reaction to this recognizable character.
Gender: Male | Vocal range: F3–B3

The Whos
The Whos, including First Who Family, Second Who Family, Third Who Family, Fourth Who Family, and Fifth Who Family, are the citizens of Whoville. Encourage each performer to develop a unique personality and sense of community.
Gender: Any

Ensemble
The Ensemble includes Jungle Citizens, Hunters, Circus Animals, Fish, Nurses, Courtroom Attendants, additional Wickersham Brothers, additional Bird Girls, and more. These roles help fill out the imaginative world of Seussical Jr and are excellent opportunities for strong ensemble participation.
Gender: Any

Why Teachers Choose Seussical Jr

• Flexible ensemble structure allows schools to involve many students creatively.
• Famous Dr. Seuss characters immediately connect with students and audiences.
• Strong featured roles like JoJo, Horton, Cat in the Hat, Gertrude, Mayzie, and Sour Kangaroo provide standout opportunities.
• The imaginative world encourages colorful costumes, creative staging, and movement-based storytelling.
• Perfect for schools wanting a production filled with humor, heart, and positive themes about individuality and imagination.

Ready to Move From Casting to Production?

Once you’ve reviewed the Seussical Jr cast list, Teton Music makes it easy to get the official ShowKit your school needs for auditions, rehearsals, and production planning.

Before You Order

If you're considering Seussical Jr for your school, reviewing the cast list is the most important first step. This helps determine whether the movement demands, ensemble structure, vocal needs, and imaginative storytelling style fit your students.

As a trusted Broadway Junior supplier, Teton Music helps schools move from planning to production with clear product options, fast turnaround, and personal support when questions come up.

• Do you have strong featured singers for JoJo, Horton, Gertrude, and Sour Kangaroo?
• Can your students fully commit to colorful physical character work?
• Would your program benefit from flexible ensemble opportunities?
• Do you want a show that balances comedy, imagination, and emotional storytelling?

Important School Licensing Note

Broadway Junior titles are licensed for accredited school programs using student performers. Orders are reviewed for eligibility, and performance rights must be handled properly before presenting the show.

Related Broadway Junior Resources

• Seussical Jr ShowKit
• How Many Scripts Come With a Broadway Junior ShowKit?
• Compare Top Broadway Junior Shows for Middle School
• Browse All Broadway Junior ShowKits and Scripts