|Behind the scenes|
|First Appearance:||The Castafiore Emerald|
|Last Appearance:||The Castafiore Emerald|
- "Hello! I can hear you!"
Iago could memorise the Captain's curses. This vocal irritation of Haddock is also complemented by his tendency to bite the Captain's finger or no reason.
Iago was given to Captain Haddock as a gift from Signora Bianca Castafiore, when she arrived at Marlinspike Hall. Though the Captain was shocked by this gift, he accepted the parrot. While Haddock was tickling Iago's beak, Iago bit the Captain's finger.
- "Blistering barnacles! That's the end!"
- —Iago, after he is set free.