Max made his first appearance in the Roswell pilot episode[2] and remained a core character throughout the three seasons of the show.

The three characters are blank slates with no memories of life on Antar, nor of the fourth hybrid, Tess (who is separately rescued by an Antarian with an agenda).

His unique power is healing through physical contact, most notably used to save Liz Parker from a bullet wound in the first episode [2] and a group of children with cancer in the second season.

An important premise of Max's character (and the show itself) is that he's been in love with Liz Parker since the first time he saw her at school when he was just six years old (shortly after emerging from the pod).

This secret ends in the pilot episode when she gets shot at the Crashdown Cafe and he saves her life, risking everything for her and starting the lead plot of the show.

[10] For this powerful connection between them and their deep and natural affinity and compatibility they're considered soulmates by both the characters of the story and the creators of the series.

"The Max-Liz connection works so well, as is so popular with "Roswell"'s fans, because, in Moore's opinion, "It's very romantic in the classic sense of the word.

She confronts Max, who then admits that he, his sister Isabel and their friend Michael are aliens from the planet Antar, whose spaceship crashed at Roswell in 1947.

Liz also begins to feel very drawn to Max in return, despite her current relationship with the sheriff's son Kyle Valenti.

[23] At the end of the season, Tess mindwarps him into believing that the baby is sick and he cannot survive in the Earth's atmosphere so they are forced to "return" to Antar in order to save him.

Thanks to the alien destiny book that Alex translated before his death, Max and his friends find the way to return home using the Granlith.

[24] Desperate to bring his son to Earth, Max digs through Tess's belongings and discovers evidence leading him to a secret government facility in possession of the reconstructed ship that brought him and the others to Roswell.

He discovers that there was a second alien protector sent in the ship with them who abandoned his responsibilities for a life as a Hollywood producer and currently goes by the name Cal Langley.

[29] Later in the season, Liz begins developing alien powers of her own, evidently as a side effect of Max healing her over two years ago.

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.

[31] At the same time in Vermont, Liz suddenly awakes feeling Max's death deep inside of her and knows that he's dead without a doubt.

It begins to transform, taking on Clayton's original features, then fading back into Max's until he wakes up staring into her tearful eyes.

[33] Shortly afterward they discover that the crashed ship was Tess coming back to Earth, carrying Max's son with her.

Calling him Zan, after his father, she says that Kivar betrayed her and their deal, and he rejected him as the heir of Antar because he is fully human, so she had to escape from the planet and return to Earth in order to save her son.

However, Max discovers that Tess, in order to force him to leave earth, mindwarped him about the baby, later on the end of season 2 when he thought that he was dying.

So, in the end of the episode, to ward them away from her son, she sacrifices herself, blowing up the military base and dying in the process and she asks Liz for help.

[34] However, this turn of events serves to resurrect the Special Unit to hunt for the aliens, and realizing someone will always be after him, Max gives Zan up for adoption, for his own safety.

Max gives up his throne because they're a group and their lives are in danger, he can't make all the decisions anymore and after all, he never really considered himself as the king nor the leader and they all have the right to choose what they want to do with their life.

However, at the high school graduation ceremony Max tries to sacrifice himself by taking FBI attention only on him in order to free the others but Michael saves him at last minute.

One of the last scenes of the series shows Liz's father reading his daughter's journal where she wrote him a letter and told him about her wedding with Max and who he really was.

At the end of the series, Max and Liz get married in a small chapel in the desert and get back in the van, continuing their trek throughout the country with their friends.

The script was rich with metaphor and irony that kept it a little light, but it was also very honest about relationship and about emotion, and just -- it was one of those things that had a bunch of different elements and a good story.

I think he learned over the course of this year that he can't always take positions and always tell people what the right or wrong thing to do is.

'If people thought one way only and didn't allow themselves to expand their views and be open-minded about the possibility of things, we'd be having this conversation with two tin cups and a really long string.

All three aliens needed to [convey a sense of] wisdom that was something other than what you would expect in a young person, and he was perfect at that"Melinda Metz, the original books' writer stated more than once that she really liked the choice and she believed that Jason Behr was the right actor for Max and she herself never really saw the character like the model her book publisher gave to her for the physical description of Max.