Aidan was born before the Revolutionary War. While serving, he was turned into a vampire by Bishop.
Aidan, despite his best efforts, was affected by the Reverend's speech. When his wife goes into labor, Aidan makes a deal with God to be a good man in exchange for his son's life. Sure enough, a baby boy is born.
In the beginning, it was Henry who saved Aidan's life.
Suren quenches her thirst.
A daper 1930s version of Aidan.
In the 1970s, Aidan started dating a French girl named Celine and looked totally groovetastic. Bishop screwed with the relationship, but the end result was Aidan stopped drinking human blood.
This is one Mother you don't want to cross.
You remember Suren, right? The 1930s lady who was buried alive. Well, Mother (in this case, a literal and figurative title) unearthed her and had her rule with Aidan by her side. Naturally, she and Aidan started dating.
Amidst all this, Aidan got caught up in some drama Josh was having with two werewolf twins, Connor and Brynn. After Connor tried to kill him, Aidan shot him. Shot him dead, that is.
Some tweaky looking dude digs Aidan out and keeps him captive in this Hannibal Lecter looking mask. Soon enough, Atlee (one of the creepy Amish vampires from seasons 1 and 2) shows up and rescues him.
Aidan tries to get Kenny to realize being a vampire sorta sucks, but Kenny doesn't care. He's leaving his isolation tank when he's 18 whether he's a vampire or not. He just figures the former means he won't die. Caught between a rock and a hard place, Aidan agrees to turn Kenny.
Aidan, weakened from drinking spiked blood and with Erin about to stake him, manages to get the better of her and throw her against a bookshelf. She's knocked unconscious. Josh walks in to see the mess (literally and figuratively. The cleaning bill's gonna be a bitch).
Meanwhile, Aidan's on his deathbed thanks to Liam injecting him with tainted blood. Yet he still manages to look handsome, one of the many reasons we love him.
With Susanna's words about embracing love ringing in his mind, healthy Aidan finds Kat and kisses her.
Liam arrives to kill Kenny, determined to off Aidan's son as revenge for Aidan murdering his. He shoots Aidan in the head (!) but, obvs, Aidan doesn't die since he's a vampire. He just is really, really hurting.
Meanwhile, Kenny woke up in full blown, blood thirsty abomination mode. Aidan was horrified.
Fast forward to 2013 and who gets out of a cab just as Aidan walks by but....Suzanna? Wait, what?