the woman exploded; Olivia instead helps her focus her powers on Harris, who is quickly incinerated.

William Bell

William Bell (portrayed by Leonard Nimoy) is the founder of Massive Dynamic and the former lab partner and friend of Walter. William is mentioned throughout season one, showing several ties with Walter's past and the study of the parallel world, including participating in the Cortexiphan trials. Sometime after Walter brought Peter from the parallel universe, William convinced Walter to allow him to remove pieces of Walter's brain and implant them in other patients to keep the knowledge of dimensional travel safe; this process led to Walter's mental instability and institutionalization. The two parted ways, William going on to form Massive Dynamic.

Sometime after founding Massive Dynamic, William finds a means to travel todivision is aware of the Observers, their intent is not yet known, though believed to be related to the Machine and the conflict between the two universes. They possess uniquely advanced technology, and appear to be temporally aware of time, including the ability to travel in time and between the two universes; the Fringe division finds evidence of Observers at several historical events but looking the same as they do in the present. Like September, the other Observers appear to be named after months, including "August" and "December". The episode "Inner Child" introduces the Fringe division to a child that appears to possess many Observer-like qualities.

In the episode "Peter", September is a catalyst in Walter's abduction of Peter from the parallel universe; September arrived wanting to see the