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Official Site: FX

Jackson "Jax" Teller is a fictional character and the main protagonist on the FX television series Sons of Anarchy, played by Charlie Hunnam. He is the Vice-President of the Sons of Anarchy Motorcycle Club's Redwood Original (SAMCRO) chapter based in Charming, California, despite only being in his early 30s. He is 6' 1" and has a number of tattoos, most notably his club's logo on his back, a tribute to his father John Teller on his right arm, and his son Abel's name on his chest. On his cut, he wears patches reading "V. President" and "Men of Mayhem". He is also something of a "Nike bikie" as he often wears stylish and fashionable clothing, such as sneakers, casual jeans and Original KD's Sunglasses. The motorcycle that he rides is a Harley-Davidson Dyna-Glide, specifically a Super Glide Sport.

Teller is the son of Gemma and John Teller and was born in 1978, and raised in Charming, California. His father died in 1993 and his mother re-married Clay Morrow, now the President of the Sons of Anarchy Motorcycle Club. He lives with the genetic heart disorder ('family curse' as Gemma calls it) that his brother Thomas "Tommy" Teller (January 8, 1984 – April 4, 1990) died from at the age of six. He is of partial Irish and Russian Jewish descent on his mother's side. He carries a KA-BAR USMC fighting knife on his waistband.

At the beginning of the series, Teller serves as the club's Vice-President, and works as a mechanic at the Teller-Morrow Auto Shop. He has served time in prison for smuggling and gun-running, his last arrest was in 2003. He married Wendy Case, but filed for divorce because of her drug habit. After Wendy got clean, they reconciled and conceived a son, Abel; Jax left her while she was pregnant because Wendy was unable to maintain sobriety for any length of time and Abel was born a crank baby in the pilot episode. Jax also has romantic ties to his high-school sweetheart Tara Knowles.

Having recently discovered several of his father's old journals and an old manuscript titled The Life and Death of Sam Crow: How the Sons of Anarchy Lost Their Way, which collectively lay out the original manifesto for SAMCRO, he finds himself doubting the club's direction, causing friction between himself and his stepfather Clay, and spreading doubt amongst the other members. Another member of SAMCRO, Opie Winston, has been his friend since childhood.

Jax Teller has not been a contender in any CBUB matches.