Not every actor got the role they auditioned for in the Marvel Cinematic Universe which is filled with many actors. When it comes to casting the MCU, Marvel Studios had incredible success.
Many actors want to get indulge in the franchise as MCU increased area and get famous. Sometimes roles of many actors complete change their careers, missing out on one is always tough.
Sometimes it happens that the role of actors or actresses audition is not a good fit for that movie or scene as Marvel Studios looks for a wide range of actors and actresses for each movie. Marvel has a history that they will come back to those peoples who they have met before. So it does not mean that those people who are not fit for the role of any particular movie will never join MCU again.
Karen Gillan For Sharon Carter
Karen Gillan firstly auditioned for another role in Marvel but she was selected for playing the role of Nebula in MCU. Meanwhile searching to cast Sharon Carter aka Agent 13 in Captain America: The Winter Soldier, Marvel met with Gillan and auditioned for the role of Captain America’s new love. However, the role was played by Emily VanCamp, Gillan still got a role in another movie which is Guardians of Galaxy.
Chris Pratt For Captain America
Chris Pratt is very popular for the role of Captain America. His work is praised by everyone as a role of Captian America. Before Chris, Sarah Finn was confirmed for the role to play Captain America for Marvel Studios.
While casting for Iron Man some people think that selecting Robert Downey Jr. has risk at that time and thought Tom Holland is suitable for this vital role. This shows that not every actor who auditions for MCU movies get the part they were trying for. So Every MCU Actor Who auditioned for another role does not get the role which they want.