Doyle a half human half demon who helps Angel in LA with Angel Investigations. Not Much is known about Doyle. He has visions that help Angel and Cordelia. Doyle has little spikes the come out of his head when he goes into demon mode which makes him more powerful then when he is human. What is known is that he hasn't known about the powers untill his early twenty's. He was also married breifly but they split up. Before she was about to get married a second time her fiancee had a ritual to kill the 1st husband. Doyle escaped their plan with Cordelia's and Angel's help. Then the one time Angel, Cordelia and Doyle helped a group of Half human half Demons escape from a army of demons. They had a device that would make light and kill anything with human blood. Angel was about to defuse to device which would kill Angel. Doyle said to Angel this is my test. He then pushes Angel off the platform kisses cordelia says "I guess we'll never know if this is a face you could learn to Love". Doyle jumped to defuse the device. Doyle does get it defused and Doyle turns into dust and he died. Angel and Cordelia must go on with out Doyle. With out Doyle's visions they are a bit in the dark now. We found out that Doyle when he kissed Cordelia in season one he gave her the visions.