Doctor Strange is the sourcerer supreme of MCU. He is one of the most strongest superheroes at the time.
Spider-man aka Peter Parker is one of the youngest superheroes in the Marvel Cinematic Universe.
Thor Odinson is one of the strongest superheroes and also the part of original six Avengers.
Tony Starc aka Iron Man is a genius, playboy, billionaire, philanthropist in MCU.
Black Widow aka Natasha Romanoff is spy and only female among the founding members of the Avengers.
Captain America aka Steve Rogers is a soldier from World War II. He is the only super soldier among original avengers.