The Johnson family poodle is a black miniature poodle that is the pet of Suzy and Jeremy Johnson. It seems that Suzy has actually trained the poodle to be aggressive to Candace Flynn ("One Good Scare Ought to Do It!", "Interview With a Platypus"). She once bit Candace's bike helmet, and the only thing that made it let go was the sight of Phineas and Ferb's Haunted House. Another time when Candace came over, Suzy had the poodle bite Candace on the butt and the opened up the sprinklers making Candace slip fall into mud. Suzy then used a remote control truck to spray mud on Candaces face and hair. Candace then ran off with the poodle biting her helmet. ("One Good Scare Ought to Do It!") Another time, when Candace was at Jeremy's house, it urinated on Candace's shoe and almost got it flushed down the toilet. ("Interview With a Platypus").
Unlike the other members of her family (save perhaps her grandmother) Suzy seems to love and adore her poodle. It is unknown if the Poodle obeys Suzy out of fear, respect, or love.
Thanks to Suzy's training, the poodle torments Candace. Either on Suzy's orders or independently, the dog has made it hard for Candace to spend time with Jeremy when they interact. Even when Suzy is not present, the poodle is aggressive, once tricking Candace into making a mess and nearly flushing her shoe down the toilet ("Interview With a Platypus").
The poodle seems to like Jeremy because in "Interview With a Platypus", while Jeremy was playing his game Destruction Mayhem 3, the poodle jumped out from the sofa. Jeremy then explained to Candace that it was Suzy's and pats the dog saying Good girl, making the poodle smile. However, when Candace tells the poodle 'Who's the good girl?', the poodle growls at her.
- "One Good Scare Ought to Do It!" (First appearance)
- "Interview With a Platypus"
- "Misperceived Monotreme" (Cameo)
- "Monster from the Id" (Cameo)