Lee (Season 3) is a character in Fear the Walking Dead.
Pre-Apocalypse
Very little is known about Crazy Dog's life before the outbreak. It can be assumed he was born on the Black Hat Reservation, or at least had some connection to the tribe as he is of Native American descent and is associated with the Black Hat tribe after The Fall.
Post-Apocalypse
At some point after the outbreak, Crazy Dog is seen to have linked up with the Black Hat tribe. He is part of the group that seizes Madison and Troy (alongside other members of the Survivalist Organization) at the outpost during the events of Burning in Water, Drowning in Flame.
He is later seen during the events of The Unveiling, where he helps capture Jake and Alicia when they arrive at the Black Hat reservation, as well as capturing Ofelia when she returns with Jake.
During Children of Wrath, he accompanies Qaletaqa Walker when he goes to negotiate with Madison for peace between the residents of Broke Jaw Ranch and the reservation.