"Big Otto" Delaney (Kurt Sutter), is a member of the Sons of Anarchy Motorcycle Club. Delaney was born in Colma, California on September 29, 1963 and was a member of the Sons of Anarchy’s Charming chapter. He is currently imprisoned in Stockton state prison on charges of second-degree murder and vehicle theft, but is still in contact with the club. He seems to be a powerful man on the inside and is the leader of the “Big House Crew”, a gang made up of imprisoned Sons of Anarchy members.
His “old lady” is Luann (now deceased) with whom he was deeply in love. He has her name tattooed on his left arm.
In Season 2, Otto is ambushed by inmates affiliated with the Aryan Brotherhood, at Ethan Zobelle’s command, and after being beaten up, the Aryan in charge of the attack, Squirrel (David J. Wright), goes one step further by gouging Otto’s good eye out with a broken mop handle (stating “Beating was from the League! This is from me!”). The attack leaves him with only 10% vision.
Otto suffers further when he is told by Jax that Luann was murdered, possibly by rival porn producer Georgie Caruso, news which completely devastates him. In the Season 2 finale, Squirrel, while in the prison’s reading room, is attacked and beaten into submission by SAMCRO sympathizers and then Otto, with assistance, stabs Squirrel in the neck with a screw-driver, killing him. Otto mirrors back Squirrel’s words as he kills him (whispering “Beating was from SAMCRO. This is from me.”).
Otto is released from lock-down in the Season 3 finale, and at SAMCRO’s request, he asks Lenny “the Pimp” Janowitz, another imprisoned SOA member, for information on Jimmy O and the Russians. The reason for Otto’s absence and imprisonment in lock-down is revealed during conversation with Clay and Bobby that Otto is being charged with murdering Squirrel, and he believes the case against him is too strong.
There were cameras in the reading room that recorded surveillance footage of him killing Squirrel, and Otto has no chance to plea down due to a report on Otto stating he “continues to show a pattern of aggressive behavior”. Otto, at the time, is unsure of what type of sentence he will receive, as his public defender, whom he had to resort to, “doesn’t speak very good English”, however Otto confesses to a devastated Clay and Bobby that he is sure he will be sentenced to death, and that by the time the SAMCRO members facing prison are arraigned and actually get to jail, Otto will be on Death Row.
In Season 4, Otto is seen to still be alive, but in solitary. On the day of SAMCRO’s release, Otto receives a razor blade hidden in his breakfast egg and slices his wrist. This turns out to be a plan set up by SAMCRO as a guard slipped a scalpel to Otto, who proceeds to kill the Russian mobster who tried to kill Jax in prison.
Later on in the season, he is met by Linc Potter, and shown proof that Luann was with Bobby prior to her death, suggesting that “the person having sex with the victim is most likely the perpetrator”. While he believes the tests, he cannot believe Bobby killed Luann, so he contacts Gemma, so that the club can exact vengeance and kill Luann’s murderer, prompting the club to look for Georgie Caruso.
As the club ultimately decides to spare Georgie’s life so they can use his billionaire contacts to end Charming Heights, Bobby visits him to tell Otto what happened, apologizing for being with Luann but claiming there was no love between them and Luann did indeed love Otto. When Otto asked if they killed Luann’s murderer, Bobby said they did, lying to Otto when he was instructed to tell the truth that they needed Georgie alive temporarily.
Otto is again approached by AUSA Lincoln Potter, who hopes to turn him against SAMCRO, as he claims Otto has suffered more for the club than any other imprisoned member - it is during this conversation that Otto’s original sentence which was for 6 years, but was later extended to 30; currently Otto is on Death Row, thus confirming Otto was sentenced to death for killing Squirrel.
Eventually Otto reaches to Linc Potter and attempts to deal with him, giving him info of the club’s criminal activities, so as long as his conditions are signed and met. These include that Lenny “The Pimp” be allowed visitations, and that his execution is carried before the scheduled date, among others things. Most notably on his list of demands was his desire to tell Bobby that he did, indeed, sell the club out.
While initially distrustful of Otto’s intent of giving more freedom to Lenny, he eventually agrees and arranges a meeting between Otto and Bobby. Otto makes it clear to Bobby how much he has lost on behalf of the club, and reveals he has given him up. Bobby is infuriated as he’s taken away by the guards, with Otto loudly saying “Time for you to start a list, Bobby”.