Each thumbnail links to a larger image from 01.jpg to 21.jpg which contains the ensemble cast of some sitcom.
Identify the pixelated characters from the sitcoms and index the number on their head to spell out the phrase USE ACTORS' NAMES INSTEAD.
Repeating this process with the actors then gives each letter from A-U exactly once, which hints at an ordering.
| Filename | Sitcom | # | Character | Actor | Index into character | Index into actor |
|---|---|---|---|---|---|---|
| 01.jpg | Parks and Recreation | 7 | April Ludgate | Aubrey Plaza | U | P |
| 02.jpg | New Girl | 3 | Jessica "Jess" Day | Zooey Deschanel | S | O |
| 03.jpg | Malcolm in the Middle | 2 | Reese | Justin Berfield | E | U |
| 04.jpg | Arrested Development | 6 | Lindsay Bluth Fünke | Portia de Rossi | A | A |
| 05.jpg | My Name is Earl | 12 | Catalina Aruca | Nadine Velazquez | C | Q |
| 06.jpg | The Office (US) | 10 | Jim Halpert | John Krasinski | T | N |
| 07.jpg | Modern Family | 6 | Cameron Tucker | Eric Stonestreet | O | T |
| 08.jpg | It's Always Sunny in Philadelphia | 6 | Deandra Reynolds | Katilin Olson | R | I |
| 09.jpg | That '70s Show | 11 | Michael Kelso | Ashton Kutcher | S | H |
| 10.jpg | Cheers | 1 | Norm Peterson | George Wendt | N | G |
| 11.jpg | Frasier | 10 | Frasier Crane | Kelsey Grammer | A | M |
| 12.jpg | Just Shoot Me | 1 | Maya Gallo | Laura San Giacomo | M | L |
| 13.jpg | 30 Rock | 5 | Liz Lemon | Tina Fey | E | F |
| 14.jpg | The Big Bang Theory | 11 | Leonard Hofstadter | Johnny Galecki | S | C |
| 15.jpg | Friends | 7 | Joey Tribbiani | Matt LeBlanc | I | B |
| 16.jpg | The IT Crowd | 7 | Roy Trenneman | Chris O'Dowd | N | D |
| 17.jpg | The Middle | 1 | Sue Heck | Eden Sher | S | E |
| 18.jpg | How I Met Your Mother | 13 | Robin Scherbatsky | Cobie Smulders | T | S |
| 19.jpg | Community | 8 | Britta Perry | Gillian Jacobs | E | J |
| 20.jpg | Everybody Loves Raymond | 8 | Robert Barone | Brad Garrett | A | R |
| 21.jpg | Scrubs | 10 | Elliot Reid | Sarah Chalke | D | K |
Following the original grid of thumbnails, we can order the 21 images into a 3x7 grid to get the following image (click to enlarge):
With a bit of squinting or image processing, we can identify the new profile as George Costanza from Seinfeld.
Following the clue "USE ACTORS' NAMES INSTEAD", we obtain the final answer JASON ALEXANDER.