Back on his home planet of Antar, Michael was general to Max Evans and Tess Harding's rule. However, he was sent to Earth where he remained in an incubation pod for a number of years. Eventually, he broke out of his pod along with Max and Isabel Evans.
Michael somehow got separated from Max and Isabel and ended up watching them from afar before finally deciding to trust them. The three then made their way through the desert to the highway, where they saw the headlights of a car. Frightened, Michael fled from the lights and hid, while Max and Isabel were taken in by the owners of the car, The Evans. Michael did not see them again for three years.
Michael wandered through the desert until he was taken to an orphanage and eventually fostered by an uncaring and abusive drunk named Hank Whitmore, who Michael claimed only kept him around "for the monthly check".
Michael is seen as the rebel of the group and an outsider, even more so than Max and Isabel due to his unhappy and abusive childhood at the hands of his foster father. He becomes obsessed with finding out about his true heritage, which sometimes leads to him acting in selfish and careless ways in order to reach his goals. Due to his insecurities and inability to control his emotions, Michael has the least control over his powers, although he does manage to improve this as the series progresses.
Michael engages in an off-again, on-again relationship with Maria DeLuca, a human in which he falls perpetually in love with midway through the first season. He comes to realise that Earth is his true home because that is where Maria is.
Like the other Hybrids, Michael has the ability to manipulate the molecular structure of objects, use telekinesis and to see glimpses of people's past when connected with them (as demonstrated when he kissed Maria), though he admits he has trouble controlling his powers as well as the others. At the end of season 1, Nasedo taught Michael how to change his fingerprint into that of another person's. He has also been seen firing blasts of energy out of his hands and displaying a great amount of physical strength. In "Who died and made you king?" Michael realizes that because Max "died" because of Clayton, he was now the leader and it is revealed that he inherited all of Max's unique powers. This is temporary because Max eventually regains his position as leader.
Michael is in the Crashdown Cafe with Max when Liz Parker is accidentally shot during an argument between two customers. Michael tries to stop Max from helping her. It is revealed later that Isabel, Max and Michael had made a pact: never to use their powers in public, as it is just too dangerous. Michael and Max make a quick exit from the café. Michael wants to leave Roswell as soon as he realizes that their cover has been blown, but is convinced to stay by the others.
Michael hardly attends school and has trouble sleeping when he hears from Liz about the possibility of a fourth alien having been in Roswell in 1959. He breaks into the sheriff's office to look for answers, but the files he needs had been taken by the FBI, so instead he finds a key, which gives him an image of a geodesic dome. He can't seem to get the image out of his head and goes to art class for the first time in a few months to draw it. From the James Atherton book Among Us, Michael finds the location of the Dome. Max and Isabel don't want to go with him and he can't convince them. So to get there, without having own transportation, he abducts Maria and her mother's car.During the ride with Maria, their relationship first starts to develop.
His feelings for Maria threaten to disrupt his carefully maintained alienation from everyone except Max and Isabel. These feelings for Maria scare him a great deal, and he simply doesn’t know how to deal with them. Because of Michael's unhappy and uncertain childhood, he has not learned many of the niceties of human interpersonal behavior and also has built a shell around himself to protect him from being hurt. He is totally unskilled in relationships and his feelings for Maria are disturbing and frightening to him, so he wants to keep her at arms' length.
Michael and Maria become even closer when, after Hank threatens Michael with a gun, he uses his powers to defend himself and leaves Hank's and ends up going to Maria's where she sees him standing out in the rain, staring at her through the window. After bringing him inside, Michael breaks down sobbing on Maria's bed and Maria just lays with him, comforting him. Hank disappeared after that incident and Michael was granted legal independence (Hank was killed by Nasedo, but Michael was unaware of this). Michael got a job as a cook at the Crashdown Café and an apartment and began to build a life on his own. He and Maria continued to grow even closer.
However, events soon conspire to push Maria and Michael apart. Tess arrives in town and Michael starts getting visions that he might be with Isabel - at one point they think she might even be pregnant with his child through some alien dream connection. Michael thinks for a time that Riverdog is Nasedo, and that Nasedo might be his father. When he meets the real Nasedo, it is quite a let down - nothing is as he imagined. Michael uses his powers to kill Agent Pierce, then feels he has become a bad person and a danger to Maria. He pushes her away - totally - because he loves her and wants to protect her from him, and also because of the mission he has to do for his people.
The second season finds Michael with new, non-spiky, longer hair and a motorbike. He is still not the ideal boyfriend or the most charming or tactful person. If anything, his anger and frustration have increased and he is annoyed by Max's sudden appointment as king and leader, and they argue frequently.
Michael comes to trust Sheriff Jim Valenti, and with his mission and finding out more about himself, he has overcome some of his anger and found new strength and new focus.
Michael and Isabel have rejected any thought of a relationship with each other. Maria and Michael continue to bicker and be close, but he initially stands firm on his resolve not to continue his romantic relationship with her.
The battle with the Skins heats up and Michael is not sure he is ready, or that he will be strong enough. The new waitress at the Crashdown, Courtney, comes on to him outrageously, amusing Michael and making Maria very jealous and annoyed. Michael is not interested in Courtney at all, but they become closer when he finds out she is an alien - a 'good' Skin and on his side. In a very touching gesture, in the episode "Harvest" Michael saves Courtney's 'husk' (her new human body being grown to replace her current shedding old one) before they destroy the Skins' headquarters in Arizona. Unfortunately, she dies to protect them soon afterward to keep the secret of the The Granilith from falling into the hands of Nicholas, leader of the 'bad' Skins.
Michael has the unsettling experience of meeting his 'dupe' Rath, who is ten times more uncouth than Michael ever could be. The totally unbelieving and cynical Michael discovers some faith during Christmas when he helps Max heal sick children and Isabel helps him out and manages to get Maria a Christmas gift she loves.
Michael and Maria go on a mission in mid-season two to take Michael's "sort-of sister", Laurie, to reclaim her home, which is being unrighteously occupied by her aunt and uncle, and to protect her from alien threats along the way. The two are faced with huge danger, in which Michael gets shot in the shoulder. However, he manages to save the day and thanks to Maria, Laurie gets her home back.
During their journey to Las Vegas, there seems to be the beginning of a thaw in Michael's resolve to keep Maria at arms' length. His love for her grows and Michael decides to let Maria "see him" in the final episode by allowing her to see into his mind and the two spend the night together. When Michael finds out that he is going back to his home planet, he realizes he has already a home on earth. He realizes his heart is with Maria and decides to stay.
Michael now has longish, shoulder length hair, and still has his dual-sport motorcycle. Because he found a home on earth, he's willing to make an effort to make it work. So he starts attending school more and finds himself an extra part-time job as a security guard to be better for Maria, and to earn more money to pay for their dates.
For the first time in his life, he has a group of male friends, which causes Maria to be jealous at first, as they do something she is unable to do: to make Michael laugh. After insisting that he spend more time with her, which causes him to sneak around behind Maria's back, she realizes that having friends is important to him and she tells him she loves him.
Soon after that Michael becomes jealous of Billy (Maria's old flame and music partner), which causes his powers to go out of control, particularly when he sees Billy and Maria singing together. He believes that Billy still has feelings for Maria, which she strongly denies. His suspicions are proved correct when Billy kisses Maria, and although she does not reciprocate his feelings, it causes her to break up with Michael, on the grounds that although she loves him, she doesn't want the "alien chaos" that comes with him. The breakup leaves Michael hurt and confused. He attempts to win her back, rather than giving her space, for example he volunteers as Santa at the same time that she volunteers as an elf. She confesses that she misses him and kisses him, but they are interrupted by a kid. She then holds her resolve and tells him that she doesn't want to be right back where they were.
At New Years, the gang is in a search for a legendary party. Michael gets drunk when he sees Maria flirting with other men. He doesn't feel well because alcohol is extra bad for an alien. However, when he hears her complaining to Liz, he tells her that he's fine and to go on without him, which sparks Maria's emotions. Liz takes care of him and promises never to tell Maria Michael let her go although he was sick.
When Maria is discovered by talent scouts, the first person she wants to tell is Michael. As a result the two sleep together again. Michael thinks this is because they are getting back together, whereas Maria just thought it was a capper to a great night. When she confesses this to Michael, she hurts him once again.
Later on someone kills Michael's friend, Monk, at the Meta-Chem Corporation where they worked together. He finds that someone at Meta-Chem is tracking him and most likely they discovered that he's an alien and they killed Monk for this reason. With Valenti's help, Michael tries to discover the truth but someone kidnaps Valenti. Max, Michael and Isabel go to Meta-Chem in order to free him. Max is the one who finds him and he discovers that someone at Meta-Chem, led by their leader Meris, was tracking Michael because they thought that he was the healer alien. Max gets in trouble, dies and survives after a resurrection. Between Max's death and resurrection, Michael gets the royal seal of Antar and becomes the king and leader. Michael can't handle this change and he starts to act recklessly. His temper gets out of control. He even throws Maria (who came back from New York) out of his car after he angrily tells her that he stayed on the planet for her and she showed her appreciation by dumping him. Michael becomes dangerous and the group tries to find a solution. Eventually, Max takes the seal from him and returns to be the rightful king again even if he never liked this role. Michael finally understands how Max was right about being the king and how it's not a funny game to play.
At the end it is discovered that Michael, Isabel, Max and Liz are in danger and must leave Roswell. Before Michael leaves, he finally tells Maria that he has loved her since day one when he stole her car, and that he always knew she was the girl for him. With that he rides off, leaving Maria at the side of the road. When Michael comes back to save Max at the graduation, Maria announces that she is coming with them and tells Michael that this is her choice and that whatever happens, the two of them are in it together.
- Michael Guerin is a fictional character created by Melinda Metz for the young adults book series Roswell High
- His favourite book is Ulysses by James Joyce.