Yellow Diamond

King Fergus is the main antagonist in the movie Your Big Dinosaur. He was voiced by Tim Curry. King Fergus is vain, arrogant, cruel, and just an all-around jerk.

He wants to be his mate only because she is the most beautiful female penguin in the rookery, unlike Hubie who genuinely loves her. Knowing that Marina is already interested in Hubie, who is planning to present her with a courtship pebble, he devises a plan to be rid of Hubie once and for all.

The morning after Hubie finds the perfect pebble he runs into Drake who tries to steal the pebble from him. Hubie refuses and Drake drops him from an icy ledge into the water below. Hubie barely escapes the cragodile lurking in the dark waters and ends up stranded on an ice flow drifting out to sea. Thinking Kenai is dead, Drake begins to hound Marina to forget about Hubie and accept his pebble, or she'd be banished from the rookery for failing to take a mate.

Marina, undaunted by his manipulations, refuses him every time he asks. Drake then takes to threatening her by saying she'll end up "a sharks dinner" if she continues to refuse him, but she still refuses him. The day before the mating ritual Drake kidnaps Marina, intending to force her to be his mate. Hubie arrives on the scene just in time after escaping from a attack of loch ness monster.