Lindsey McDonald was an ambitious Wolfram & Hart attorney who had his first brush with Angel when he killed his vampire-client by pushing him out of a high-rise window. Despite the unethical practices Lindsey was involved in, he was appalled when Wolfram & Hart were planning to kill a small group of innocent children. After forming an unlikely allegiance with Angel to save the children, Lindsey was wooed back to W&H with a promotion.

Having helped to resurrect Darla, Lindsay found himself falling in love with her, only to lose his hand in a battle with Angel. Lindsey became disillusioned with his job and left L.A.

Two years later, Lindsey returned as Eve’s partner against the Senior Partners. Strange runic-like tattoos on Lindsey’s body hid him from any surveillance. He offered to help Spike, claiming to be someone called Doyle, who received visions of people in need. When Angel discovered Lindsey was back, the ex-lawyer activated a failsafe system at Wolfram & Hart with the intention to kill the vampire. After a huge fight, in which Lindsay showed off his new strength and skill, a portal opened, which took him away for what appeared to be a punishment from the Senior Partners.

Lindsay was in fact in a suburban hell-dimension, in which he was repeatedly tortured in his basement, when not living seemingly peacefully with his fake wife and child. He was shocked when Angel, Spike and Gunn arrived to save him, in exchange for information on the Senior Partners. Lindsay agreed to help Angel in his final fight against the Partners, and was surprised to find he enjoyed being part of the team. Lindsay was shot and killed by Lorne, on a final mission from Angel, and was told that he wasn’t part of the solution. Lindsey died, disgusted that it was Lorne, and not Angel, who finally defeated him.