"Don't waste it. Don't waste your life, Stark." Ho Yinsen
"I'll give you Stark, and you'll give me an army of metal soldiers—" Raza before being disposed of by Stane
"Hold still, you little prick." Obadiah Stane (aka Iron Monger)
"Oh, no. I've never mistaken anything about you since you were a kid. Houdini's out of the bottle. We gave... a wondeful gift to the world. I'm stuck. We've done our part. Now it's time for both of us to go. No. NO!" Stane's last words in a deleted scene.
"What have you done? NO...!" Johan Schmidt (aka The Red Skull)
"It's okay boss. This was never going to work, unless they had something to..." Agent Phil Coulson. He gets better.
Iron Man 3
"Savin, help! Help me!" Jack Taggert, as he explodes from Extremis
"I think I need to sleep for a while, sir." JARVIS... briefly, after running out of battery power in the Mark 42
"Deputy, get this woman—" Tennessee Sheriff, before being killed by one of Killian's minions, Ellen Brandt
"That all you got? A cheap trick and a cheesy one-liner?" Ellen Brandt
"What happens to you [Killian]? What happens if you get too hot?" Maya Hansen, before being killed by the true Mandarin himself, Aldrich Killian
"How did we get this shift?" Mansion Mook #1, killed later by a repulsor blast from one of the Mark 42 arm pieces that comes to Tony Stark
(Referring to The President of the USA) "He's not here. Try the jet stream? Speaking of which, go fish." Eric Savin, before blowing a hole in Air Force One, killed by Iron Man's chest unibeam laser seconds later
"No more false faces. You said you wanted the Mandarin. You're looking right at him. It was always me, Tony. Right from the start. I AM THE MANDARIN!" Aldrich Killian (aka The Mandarin)
Agents of S.H.I.E.L.D.
"Oh God." The Englishman
"We're here to get you out." Quan Chen, before being killed by Chan (aka Scorch)
"It already does." Chan Ho Yin (aka Scorch), before being injected with more Extremis and exploding
"Go." Fireman Tony Diaz, before dying from the Chitari electric virus
"No! Please, don't do th—" Brian Hayward
"Keep him safe. Take care of my boy!" Mike Peterson, prior to the explosion he was caught in and his transformation into Deathlok
"Yes, I'm here." Edison Po
"Apparently there's been a misunderstanding. We delivered the package as promised. If we could just speak to Mr. Quinn—" Sofia
"Let. Her. Go." Carlo Mancini
Thor 2: The Dark World
"I will never tell you [where Jane Foster and the Aether in her actually is]." Frigga, before being killed by Kurse
(In Dark Elf Language) "He is an enemy of Asgard. I saw him as their prisoner." Kurse. Killed by Loki after stabbing him in the following brawl.