Claire Pike is Mallory Pike's 5 year old sister and the youngest member of the Pike Family. Claire lives with her family in Stoneybrook, Connecticut, where she was born. She has 4 brothers and 3 sisters. Claire's brothers are Nicky Pike, Adam Pike, Byron Pike, and Jordan Pike. Her sisters are Mallory Pike, Margo Pike, and Vanessa Pike.
Like all the other Pikes she has blue eyes and reddish-brown hair. She is very short,
Claire calls her mother Moozie and her father Daggles. She is going through a silly stage and sometimes runs around the house naked. She calls everyone Silly-Billy-Goo-Goo. She is huggable and affectionate. Although she does tend to have a temper, she throws baseball tantrums even if it's on tv. Her softball tantrums are famous.
Claire entered in the Little Miss Stoneybrook beauty pageant in Book #15 Little Miss Stoneybrook ...and Dawn, but lost. Her talent was to sing a comedic version of the Popeye theme song, complete with dancing the hornpipe.
Her Lucy Dress, which looks like Lucy's from the Peanuts comic strip. It's a striped blue and black dress with a flouncy skirt. Claire has worn it practically every day for the past six months in Mallory and the Ghost Cat.
In Claudia and the Mystery at the Museum she saw "Annie" and wanted to be a star. She gets a promotional video at the mall. Then sends it out to an agent who rejects her.
- Noodle her mop-horse.
- Help in the kitchen.
- Stuff bear named Thomas.
- She goes to morning kindergarten but can stay for the second session as well.
- She wars watch on right wrist even though she can't tell time.
- Still believes in Santa but she is suspicious.
- Claire was colicky when she was a baby.
- Had bronchitis.
- Promises to visit all of her new friends at Stoneybrook Manor at least once a month.
- In Kristy and the Vampires she comes down with a case of vampire phobia. She is cursed after dress up as a witch and scaring a vampire.