Nicholas Fury

Nick Fury is the top espionage agent in the world. He is the director of S.H.I.E.L.D., the world's leading espionage agency, and though he does not possess any super-powers, Nick is probably the most highly trained agent of any military. S.H.I.E.L.D. steps in to help Pepper Potts arrest Obadiah Stane.

After the credits, Nick meets Tony in his home, explaining to him that he's not the only super-hero out there, and that there's an "Avengers Project" he'd like Tony to think about.

Iron Man
Nick Fury visited Tony Stark and asked to speak to him about the Avenger Initiative.

Iron Man 2
Nick Fury found Tony Stark heavy with a hangover sitting on a Randy's Donuts sign. He got Stark to come down and talk with him, Stark told him that he doesn't want to join the The Avengers. Fury told Stark that he is not the only one out there like him. He also said that he's got problems in the South Coast.

Fury sent S.H.I.E.L.D. to Stark's house to keep guard after the fight between Stark and Rhodey. Fury mentioned that it was Tony's father Howard Stark who formed S.H.I.E.L.D. Fury gave Stark a casket which belonged to Howard. Fury assigned Phil Coulson to guard Stark and for Natasha Romanoff to remain as Stark's assistant. In a secret S.H.I.E.L.D. hideout Fury briefed Stark on the events. Stark looked at his character evaluation which Natasha Romanoff wrote about him. Fury then told Stark that he wasn't suitable to be on the team but would be a consultant to S.H.I.E.L.D. instead.

The Incredible Hulk
Nick Fury is a contact of Thaddeus Ross.

Friends and Allies

 * Steve Rogers/Captain America
 * Iron Man/Tony Stark
 * Black Widow - Fellow S.H.I.E.L.D. Agent
 * Phil Coulson - Fellow S.H.I.E.L.D. Agent
 * Dum Dum Dugan

Enemies

 * Red Skull
 * Arnim Zola

Appearances/Actors

 * Canon (Currently) (6 films)
 * Captain America: The First Avenger - Samuel L. Jackson
 * Iron Man (First appearance) - Samuel L. Jackson
 * Iron Man 2 - Samuel L. Jackson
 * The Incredible Hulk (Mentioned only)
 * Thor - Samuel L. Jackson
 * The Avengers - Samuel L. Jackson

Behind the scenes

 * Originally conforming to his super-spy roots in the Ultimate universe, it's creators decided to go in a different direction and asked Samuel L. Jackson if they could base their character on him.