1, Bill Sheehan is a character in Liu's science fiction "Three-body" and one of the four faceless people. He is a British scientist and politician.

2. Shane Bill Sheehan's prototype is Sheehan in Three-body, which refers to the original work in terms of identity and knowledge. But his secret identity is the "thought seal" of the second most capable person in the psychology department, so Bill Sheehan's prototype is Sheehan.

3. Three-body Bill Sheehan is not dead. According to the relevant public information, only Bill Sheehan survived in the three-body because Bill Sheehan was covered with the thought seal that water is highly toxic. The hearing of the Planetary Defense Committee's side wall plan decided to open the ideological seal to the society as a public facility, called the belief center.

4. Because Bill Sheehan was marked by water, it is a poisonous ideological seal. The hearing of the Planetary Defense Committee's side wall plan decided to open the ideological seal to the society as a public facility, called the belief center.