Making a story has its own twists and turns and every character especially the one that will have a dynamic role must be portrayed and presented in a way that your readers will have a better understanding with.
It is indeed a great and tasking challenge and a bit more complicated in nature than just creating a simple static character. When you are planning on making an effective dynamic character here are a few traits and features that you may need to create to make the story it evolves in more realistic.
What matters in all aspect is the personality of the character that will reflect all the core values that you desire your character to possess. Another factor that will make your character dynamic and realistic is to give flaws to its personality and do not be afraid to blemish your character and that will also give a twist to the story.
One more specific is the values and passions of the character that will show what they want in life, what their fear is, what challenges them. To make it more realistic, you can include what are the things that your character loves to do, is passionate about, something that makes the most of what they are. Also, to make it more unique, you can add something that can be a distinguishing mark or attribute on your character, like mannerisms, habits, or gestures that make them distinct from the other characters.
A most effective dynamic character shows a change in the story and has a transition from one personality to another that will make it more exciting, in the likes of being naive to witty, being wicked to good, anything of the likes that gives it a twist.
Creating such dynamic character is absolutely very tasking and challenging as you need to be successful in relieving the kind of persona you are portraying in the imagination of your readers, evolving all the same with the twist and turns of the entire story that will feed the interests of your readers.
Having the right materials, script, idea, imagination and concept of the story, and bringing with it the kind of dynamic character that possess that needed qualifications and character, will make your story more effective, realistic, and easy to relate with in real life scenarios.
Do your research, expand your imagination and work well on the dynamic character that will catch the interest of your readers and will make them want to discover about that person.