Harmoo the Cat

Harmoo is a Himalayan cat, who is spoiled by petographers, Stuart and Oliver.

Biography
Harmoo is a cat owned by petographers, Stuart and Oliver. He is often seen carried around like a child.

Harmoo has an intense dislike for Spencer and often attacks his face when he is nearby.

Later, when the iCarly gang get revenge on the Petographers for trashing their studio, Sam kidnaps Harmoo and keep him in the upstairs bathroom of Carly's apartment. They send the Petographers a note threatening to shave off Harmoo's fur if they don't fix the iCarly studio and they immediately agree, because of their love for the cat.

Despite Spencer's dislike of Harmoo, he saves him. When Harmoo is perched upon a ledge outside Freddie's new apartment, Spencer crawls on the ledge, showing Harmoo his face to tempt Harmoo into attacking him, which allowed Spencer to bring him to safety by falling back into the apartment.

Physical Appearance
Harmoo has fluffy white and gray hair.

Personality
The cat is mostly docile, but when he is around Spencer, he attacks his face, leading Spencer to call him "possessed."

Credits to

 * iCarly Wiki on Fandom