Gertrude Mcfuzz
Gertrude Mcfuzz is very self-conscious and aware that her one-feather tail isn't perfect. Gertrude changes during the show from a nervous and shy bird into one with the power to protect and care for a baby elephant bird and commit herself to Horton. In other words, she stops worrying about her looks and grows up.

Mr.  and Mrs. Mayor 
Mr. and Mrs. Mayor are Whos who are parents trying hard to raise a difficult child in a difficult world. They may get aggravated with Jojo, but they love him dearly and try to do the right thing, even if it turns out to be a mistake.

The Wickersham Brothers
The Wickersham Brothers joy hanging around with one another, making music together on the street corner, and playing off one another. 

Horton The Elephant
Horton The Elephant is a gentle giant. Think of him as a big-hearted elephant who is steadfast, responsible and always tries to do the right thing for his friends. He is imaginative and receptive to the world around him. He is very unselfconscious. Horton's view of the world never changes - he believes in its goodness. 

Sour Kangaroo
Sour Kangaroo isn't really sour at all. She's just got a lot of attitude. She's loud, brassy, and a lot of fun.

Character Descriptions

Mayzie La Bird 
Mayzie La Bird is self-centered, selfish, and vain. Mayzie will never admit to her own flaws. Mayzie isn't all bad. 

The Whos
The Whos are a lot like you and me, only so small as to be invisible. 

The Cat In The Hat
The Cat In The Hat is the essence of mischief, fun, and imagination. The Cat stirs things up, causes trouble, but always sets things right again, helping Jojo to discover the power of his own imagination. 

Seussical is based on the works of Dr. Seuss and weaves together his most famous tales and characters from at least fifteen of his books. The show follows the adventures of Horton, an elephant who one day hears voices coming from a speck of dust. He soon discovers that within this tiny speck exists the smallest planet in the universe! On this tiny planet live a tiny race of creatures known as Whos. Although challenged by the other animals in the Jungle of Nool for believing in something he cannot see, Horton stubbornly persists in his belief that the Whos exist. Traveling everywhere from the Jungle of Nool to McEligott’s Pool, some of the characters fall in love, some have desperate adventures, and some even save the world.

Jojo
Jojo is a "Thinker", a smart child with a wild imagination. His Thinks get him into constant trouble. By the end of the show, he learns what it means to be a responsible member of his world, using the power and possibilities of his own Thinks.