Blaine Devon Anderson is a major character on Glee fandom. He is an alumnus of McKinley High School and former Dalton Academy student. Blaine makes his debut in Season Two, in the episode Never Been Kissed as the lead singer of the Dalton Academy Warblers, but later transfers to William McKinley High School at the beginning of Season Three. Blaine is openly gay and is now married to Kurt Hummel as of the episode A Wedding. Despite revealing his infidelity in The Break-Up, Kurt eventually decides to forgive him. Blaine goes on to propose to Kurt at the beginning of Season Five. In New Directions, it is revealed he has been accepted into NYADA and, in the same episode, he graduates from McKinley, along with Tina, Artie, Becky, Brittany, and Sam. It is revealed in Season Six premiere that the engagement was called off and he was cut from NYADA after his grades slips because he is depressed, and he started dating Dave Karofsky afterwards. He was working at Dalton Academy as the coach of the Warblers until Dalton Academy burnt to ground with nothing left to save, so he joins New Directions alongside Kurt, Rachel and Will as a new co-director, while the Warblers join New Directions as well. Karofsky broke it off with Blaine when he realised their 'time was up' after Kurt came back to Lima. Blaine and Kurt finally got married in the final season.
He was a recurring character introduced in Season Two, but was promoted to the main cast in Season Three onwards. He is portrayed by actor and singer-songwriter Darren Criss.
Blaine is implied to come from a wealthy family. His older brother, Cooper, was very critical and domineering when they were young, and it is implied that Blaine is not very close to his father because of his sexuality. Before moving to Dalton Academy, Blaine went to a public school where he was constantly bullied because of his sexuality. Just after he came out, he attended a Sadie Hawkins dance with a friend who was the only other openly gay student at his school. While waiting for his friend's dad to pick them up, he and his friend were jumped by three homophobic bullies and were beat mercilessly. Blaine then decided to transfer to Dalton because of their zero-tolerance bullying policy and has soon gained a lot more confidence since.
Originally, Blaine is portrayed as a young man with a confident exterior that often belies his insecurities. He is very composed and shows a lot of self-control, but there are times when he throws himself into situations impulsively, such as serenading another guy in public and subsequently getting him fired or seeking out Burt to give Kurt the "sex talk." There are other times that shows Blaine having a temper, such as when he snapped at Sam in Hold on to Sixteen for rejecting his suggestions. He is increasingly portrayed as someone who approves the idea of "fitting in." While he's not afraid of being openly gay, he still prefers to act socially acceptable and warns Kurt that trying too hard and showing too much can be detrimental, as proven in the episodes Special Education and Prom Queen.
After moving to McKinley in Season Three, Blaine has shown a more needier, attention-seeking side such as the time his older brother, Cooper visited Lima or when Kurt was texting another guy. Despite his flaws, he remains to be a very passionate and caring young man and loves Kurt dearly.
In Season Four, after encouraging Kurt to leave for New York, Blaine finds himself alone and seeks solice in his friends, Sam and Tina. It is in this time that Blaine shows a more campy, fun side to him and loosens up from his composed, reserved self that he held when he was attending Dalton Academy. He has also grown more dramatic, especially due to his stress about senior year, as shown in Season Five when he catches Sam and Tina tongue-kissing whilst locking themselves in the school for the evening and accuses them of ruining the night he had so perfectly planned.
Towards the midpoint of Season Five, after moving to New York, Blaine's reserved, conservative personality starts coming back, especially in "Tested," when he begins emotionally eating and reading porn websites to deal with his insecurities about Kurt taking batter care of himself and having a brand new independence and maturity, which leads to him feeling as though their relationship is suddenly becoming a battlefield between two guys and not liking the way he feels about himself anymore, which he confides in Kurt, in tears.
- Klaine is a slash ship between Kurt Hummel and Blaine Anderson.
- Anderberry is a friendship between Rachel Berry and Blaine Anderson.
Kurt and Blaine meet in Never Been Kissed, when Kurt spies on the Dalton Academy Warblers, due to a suggestion made by Puck during a meeting of the New Direction boys about how to beat the girls in the Boys vs. Girls competition. Blaine and Kurt have instant chemistry and soon develop a friendship. Blaine gives Kurt advice on how to handle Karofsky's bullying, and goes to Kurt's school to confront Karofsky about his actions, but when the bullying becomes unbearable, Kurt transfer to Dalton Academy and joins The Warblers, resulting in him and Blaine continuing to grow closer. Blaine often acts as a mentor and source of courage for Kurt, before making the transition into a romantic interest. In A Very Glee Christmas, Kurt reveals to Will that he is in love with Blaine, and that Blaine is actually gay. The two perform their first duet, Baby, It's Cold Outside. Then in Silly Love Songs, Kurt admits to Blaine that he has feelings for him. Blaine confesses that he has no idea what he is doing when it comes to romance, and the two agree to stay friends. They remain just friends until Blaine realizes he is in love with Kurt in Original Song (when Kurt sings Blackbird by The Beatles). This is the episode in which they share their very first kiss, and it is assumed that they start dating very soon afterwards. In the episode New York Blaine tells Kurt that he loves him, to which Kurt replies that he loves him, too. Their relationship is taken to the next step in Season Three where Blaine transfers to McKinley because he can't stand to be apart from the person he loves.
Kurt and Blaine share loving looks during some songs and rarely fight, having had had three fights during the course of their relationship so far (The First Time, Dance with Somebody and The Break-Up). They have been dating for over a year, their one-year anniversary was on 15 March 2012. They also lost their virginities to each other in Season Three in the episode The First Time.
In Season Four, Kurt and Blaine's relationship is tested when Blaine convinces Kurt to move to New York in The New Rachel. They maintain their long distance relationship successfully at first via skyping and texting, but with conflicting schedules, things start to slide quickly. In The Break-Up, Blaine surprises Kurt by showing up in New York early. During Blaine's acoustic performance of Teenage Dream, he becomes very emotional, which Kurt notices. Eventually, Kurt asks Blaine what the problem is, resulting in Blaine telling him that he was with someone else back in Lima (presumably Eli.C). Kurt leaves heartbroken and ends up giving him the silent treatment. In The Role You Were Born to Play, Blaine admits to Sam that since the break-up, he hasn't been the same and is afraid that he lost the love of his life.
Now, In the weeks leading up to season 5, it has been speculated that Kurt and Blaine will get engaged. Chris Colfer was spotted on set recently wearing an engagement ring. There were also two songs shot in the past few weeks (All You Need is Love, Got To Get You Into My Life) that lead fans to believe that Klaine is in fact back together
Rachel and Blaine seem to have met before as they are seen talking in the Season Two episode, The Sue Sylvester Shuffle, as friends. The two share a drunken, sloppy kiss in an imprompt game of spin-the-bottle in Blame It on the Alcohol. This is where their relationship sparks, as Rachel claims that she found a new duet partner in Blaine. Afterwards, they sing Don't You Want Me, and they seem to have interest in one another. They go on a date, but when Rachel kisses Blaine while he is in line ordering coffee in The Lima Bean he confirms that he is '100% gay.' They were good friends in Season 3 and starred in West Side Story together. In the fourth season, they barely interact due to Rachel moving to New York for college. At McKinley, members of New Directions go head-to-head in the competitive run to be The New Rachel. Blaine eventually wins this role. Rachel is thrilled to see Blaine several times, during Kurt and Blaine's Skype calls, and also when Blaine visits Kurt, Rachel and Finn in The Break-Up.
- Much like Kurt, the first character he is seen kissing on-screen is a female, despite being an openly gay character.
- Blaine's middle name was stated to be "Devon" by Ryan Murphy, the show's creator, on Twitter and was first mentioned in the episode Feud by Sue when referring to his contract with the Cheerios.
- Along with Kurt, Mike, Will, Sue, Quinn, Santana, Brittany, Rachel, and Tina he is one of the only characters to have had their middle name revealed.
- He uses raspberry hairgel. (Dynamic Duets)
- Blaine is tied with Rachel for singing in the most episodes in a single season, having sung in at least one song in every episode except for one in Season Four. ◾He is also tied with Rachel for singing the most duets in a single episode. He had three duets in Girls (and Boys) on Film and Rachel had three in Duets.
- He has the second most solos in the show with 31 (Rachel being first with 46).
- He also holds the records for most solos sung by a character in their debut season, and most solos sung by a character not played by a main cast member (this record was achieved before Darren Criss' promotion).
- Blaine reads Sam Star Wars fan-fiction to help Sam fall asleep at night. (Bash)
- Despite having transferred from Dalton Academy, Blaine has managed to appear in a Dalton blazer for every subsequent season since his debut in Season Two: in The Purple Piano Project for Season Three, Dynamic Duets for Season Four, Opening Night for Season Five, and Loser Like Me and Jagged Little Tapestry for Season Six.
- Four of these five instances are concurrent with a song: My Dark Side, Lovefool, Sing and It's Too Late. My Dark Side and Sing feature Blaine in Dalton Academy putting the blazer on during the performances themselves (or more accurately, feature the Warblers coercing him to put it on), while Lovefool and It's Too Late show him in fantasy sequences (Rachel's and Kurt's, respectively) with the blazer already put on. Blaine has solos in all these songs except Lovefool.
- 2009 features Blaine in the uniform as well, though he has it on as an enrolled Dalton student.
- Season Four is the only season where Blaine appears, but doesn't sing a duet with Rachel.
- Season Six is the only season where Blaine appears, but doesn't sing a solo.
- There is an inconsistency with the years in which Blaine is at high school. ◾In Prom Queen, when Blaine is a sophomore, he tells Kurt he transferred to Dalton because he was attacked after a Sadie Hawkins dance at his old school. Sadie Hawkins takes place somewhere around the middle of the school year, or around winter/spring. Sadie Hawkins dances can take place in middle schools, but Blaine specifies he transferred to Dalton after he was attacked, meaning he could only have been in his freshman year of high school when he attended the dance.
- However, in the episode 2009, we briefly see Blaine in his Warbler's uniform with some other Warblers. Since it's 2009, Blaine is a freshman during this short moment, but this is at the beginning of the school year.
- Unless he was held back a year and repeated his freshman year for whatever reason, this can't be possible. But it is established that Blaine was born in 1995, which means being a freshman in 2009 lines up.