John M. Harris is known for The Land Before Time: Sing Along Songs (1997), Horizon (1964) and Ice Age Giants (2013).

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"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

2026 Fall TV and Streaming Watch Guide

&quot;The Gentlemen&quot; and &quot;Slow Horses&quot; return this fall, while the &quot;Reacher&quot; spin-off series &quot;Neagley&quot; makes its debut. See our guide of the biggest Fall TV and streaming releases.

Get a closer look at these actors from their many TV and streaming series roles.

Streaming Stars, Then and Now

consulting paleontologist: Chief Curator, George C. Page Museum of Natural History

The Land Before Time: Sing Along Songs (1997)

Self - curator, La Brea Tar Pits and Museum

Self - Chief Curator George C. Page Museum

John M. Harris(II)

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