Campbell Iman is a character in Saw II: Flesh and Blood.
Campbell was targeted by Jigsaw for his addiction to drugs and his estrangement from his son, who is also a drug addict. Jigsaw placed him in the Venus Flytrap which he escaped by cutting out a key buried near his own eye. After traversing several traps, Campbell is informed that another victim, Michael Tapp, in the game and that only one will live. Campbell is given the choice to sacrifice himself for a stranger or saving himself, knowing he only has a short time to live due to his cancer. The choice decides the fate of Michael towards the game's end.
If Campbell sacrifices himself, he gets crushed by spiked moving walls. If Campbell chooses to save himself, Michael dies and Campbell meets Jigsaw who informs him that his son is safe, and that he passed his own test prior to Campbell's test, and all he has to do is leave through the exit to see him. Campbell though is enraged and doesn't want his son to live in a world with people like Jigsaw, so he attempts to assault Jigsaw only to be killed by a concealed, falling scythe. Jigsaw then goes to his body and mutters "Game Over".