|The following is a list of main and recurring characters in the Allegra's Window series.
- Allegra is a curious young girl. She is puppeteered by Kathryn Mullen.
- Rondo is Allegra's older brother. He is puppeteered by Anthony Asbury.
- Lindi is Allegra's best friend, a dog. She is puppeteered by Pam Arciero.
- Riff is a dishonest and often rude cat. He is puppeteered by Martin P. Robinson.
- Mr. Cook is the town baker. He is puppeteered by Tim Lagasse.
- Poco is Mr. Cook's nephew. He is puppeteered by Anthony Asbury.
- Sonata is Allegra's mother. She is puppeteered by Pam Arciero.
- Clef is Allegra's father. He is puppeteered by Martin P. Robinson.
- Reed is the owner of the town's music shop. He is portrayed by Bob Stillman.
- Ms. Melody is Allegra's teacher. She is portrayed by Andrea Frierson.
- Ellington is the oldest resident of Hummingbird Alley. He is portrayed by Harry Burney.
- Encora is the mail carrier with a love for singing. She is portrayed by Joanne Baum.
- Woofer, Aria and Tweeter are three tiny hummingbirds who live in a nest above a tree in Reed's piano garden. They are puppeteered by Martin P. Robinson and Anthony Asbury.
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