Season 1: (blue)
Olivia is serious. She is driven. She does not trust easily and often hides her feelings. She is intuitive and smart. She is good at her job. She is brave. Once she learns about Walter and William Bell’s child experiments and her part in them, she is hurt, scared of herself, and angry at them.
Season 2: (blue mostly, travels to red in the last 2 episodes)
She is still guarded (What Lies Below e12, kind of). She is really hard on herself (Grey Matters e10, e14,). She is strong (Bell, first meeting flashback Jacksonville e14), but impatient (Weis, bowling lessons). She wants to be self-sufficient, to do it all on her own (Weis, bowling lessons). She hates her human weakness/ too strong emotions (Grey Matters e10). She does not share her feelings easily; she tries to shield her loved ones (What Lies Below e12), really she wants to protect everyone (Olivia…the Revolver. e16, Brown Better e19, Northwest Passage e20). She is self-sacrificing (What Lies Below e12). She has a good memory, but can’t remember the illegal experimentation she experienced as a child (Jacksonville e14).She does not feel fear anymore; she feels angers, which makes her good at her job (Jacksonville e14). Intimacy scares her; she has trouble forming relationships (e14). She has insomnia and constantly goes over her choices again and again, beating herself up over them (Olivia. In the Lab. With the Revolver. e16). Family is the most important thing to her (Over There: Part 1 e21 – spending her last night with Rachel and Ella and going to the hostile Other Side without a plan to save Peter). “She is always trying to make up for something, right some imaginary wrong” (e22). She switches to begging rather quickly! Then again, who knows what anyone would do when trapped in a strange, hostile universe alone (e22).
Season 3: (alternating blue/red, last episode is gray for accelerated, but original timeline)
She is spirited. People are always portrayed as talking back, but I don’t know if that is the smartest course of action when someone is trying to break you. I suppose it depends on the situation. If they are trying to get information out of you through torture, that may be smart because it may provoke them to kill you, but if they’re trying to brainwash you into believing a lie, it may be smarter to play along relatively soon. However, the first day would be rather quick and we don’t know how much time passed. (e1) Olivia grows a lot in her ability to trust. Furthermore, by the end, she trusts herself a little more. She is able to tell Peter she loves him!
Season 4: (Amber) – re-set timeline, without Peter, after he went in the machine.
Never having met Peter, even as a child, Olivia is harder, more caustic, less compassionate. For example, she is tough with Lincoln after his partner dies. She also antagonizes Fauxlivia…except for Walter…She is maybe even better with Walter. I assume because it is only her and Astrid taking care of him, not Peter. Eventually she recovers original timeline Olivia’s memories.
Season 5: time jump 24 years in the future
Things are strained between Peter and Olivia because when the Observers invaded and kidnapped their daughter, Peter refused to stop looking and left Olivia. On the other hand, after searching, Olivia grieved for her daughter, but joined Walter and Astrid in attempting to stop the Observers. As a result of Peter leaving Olivia, she regresses a little bit in her inability to trust. She also finds seeing her adult daughter awkward. Of course she loves Etta, but Olivia was stuck in amber for 20 years. As far as she was concerned, 3 year old Etta disappeared without a trace only months ago. Now Olivia has to adjust to the idea of her daughter as an adult. Furthermore, like the others Olivia not only missed out on Etta’s childhood, but also missed out on all world developments for the past 20 years. The world is strange, even compared to the world they knew. Peter seems to adapt to adult Etta better than Olivia, but he always had an easier time with emotions. In the end, Olivia and Peter reconcile and turn to each other for comfort.
Change is Good: Over the past 5 years, Olivia has undergone an immense transformations. The time jump caused some regression in her emotional development; nonetheless, she blossomed at Fringe division. She remains rather serious, but her smile comes easier. She (understandably) has trust issues, but she learns to let herself be vulnerable. She conquers her fear of letting someone into her heart. She accepts her flaws and she accepts her past. Olivia is not perfect; after all, she is human, but she made a lot of progress.