Jeff Elmassian is known for Krypto the Superdog (2005), The Adventures of Elmo in Grouchland (1999) and Prisoner (2007).

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Hollywood Power Couples

Get a closer look at some of Hollywood&#39;s perfect pairs.

"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

Fran Brill, Kevin Clash, Stephanie D'Abruzzo, Joey Mazzarino, Jerry Nelson, David Rudman, and Caroll Spinney in The Adventures of Elmo in Grouchland (1999)

Jeff Elmassian

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