Editing Simon Rex (section)

=== Television ===
{| class="wikitable sortable"
! Year
! Title
! Role
! class="unsortable" | Notes
|-
| 1996
| ''[[Baywatch]]''
| Himself
| Episode: "Beachblast"
|-
| rowspan="2" | 1999
| ''[[Felicity (TV series)|Felicity]]''
| Eli
| 4 episodes
|-
| ''[[Katie Joplin]]''
| Tiger French
| Main role; 5 episodes
|-
| 1999–2001
| ''[[Jack & Jill (TV series)|Jack & Jill]]''
| Michael "Mikey" Russo
| Main role; 32 episodes
|-
| 2002–03
| ''[[What I Like About You (TV series)|What I Like About You]]''
| Jeff Campbell
| Main role (season 1); 21 episodes
|-
| 2004
| ''{{sortname|The|Karate Dog}}''
| Det. Peter Fowler
| Television film
|-
| 2004–05
| ''[[Summerland (TV series)|Summerland]]''
| Sun
| 2 episodes
|-
| rowspan="2" | 2005
| ''[[Cuts (TV series)|Cuts]]''
| Harrison
| 2 episodes
|-
| ''[[Everwood]]''
| Cliff Fenton
| Episode: "So Long, Farewell..."
|-
| 2006
| ''[[Monarch Cove]]''
| Eddie Lucas
| Main role; 14 episodes
|-
| 2010
| ''[[Nick Swardson's Pretend Time]]''
| Brian
| Episode: "I Just Got Voodoo'd"
|-
| 2014
| ''[[Happyland (TV series)|Happyland]]''
| Tony
| Episode: "Park Maintenance"
|-
| rowspan="2" | 2015
| ''[[Perception (TV series)|Perception]]''
| Roy Meier
| Episode: "Meat"
|-
| ''[[NCIS season 12|NCIS]]''
| Scott Bleeker
| Episode: "Status Update"
|-
| 2016–17
| ''[[Typical Rick]]''
| Rick
| 12 episodes
|-
| 2020
| ''[[The Real Bros of Simi Valley]]''
| DJ Womp Womp
| Episode: "Lights Out Gringos"
|-
| 2022
| ''[[Saturday Night Live]]''
| Himself/Dirt Nasty
| Episode: "[[Jerrod Carmichael]]/[[Gunna (rapper)|Gunna]]"
|-
| 2023
| ''[[Bupkis (TV series)|Bupkis]]''
| Ben/Crispy
| Episode: "Crispytown"
|-
| 2024
| ''[[It's Florida, Man]]''
| Eric Merda
| Episode: "Gator"
|-
| 2025
| ''[[Mo (TV series)|Mo]]''
| Guy
| Season 2
|}