Olivia speaks to the unusual child at the center of this Fringe episode. He's sort of like a mini Observer, which ought to cause many questions in the minds of viewers.
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What's the deal with this bald kid in "Inner Child?" He tries to help Olivia and the team solve a series of murders.
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Peter bonds with a mysterious young boy (played by Spencer List) in "Inner Child." It's the first new episode of Fringe about a long hiatus.
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The Fringe team comes across this unique child during the episode "Inner Child." He's like a mini Observer.
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Fringe Season 1 Episode 15 Quotes

Broyles: Dr. Bishop? Any thoughts?
Walter: Perhaps. First I need a piece of special equipment. My turntable.
Broyles: Is that some kind of lab equipment?
Walter: No, no, a turntable. Record player. You enjoy music, don't you, Mr. Broyles? Well imagine the agony of having an extensive record collection and having no means to play it.
Peter: The agony.
Broyles: I'll have someone get right on it.

Peter, don't be such a prude. I'm sure Agent Dunham knows what a penis looks like. Don't you agent Dunham?

Walter