Editing According to Jim (section)

=== Main and recurring cast ===
[[File:Jim Belushi Unveils Belushi Performance Hall at MAC Motown 2015.jpg|upright=0.75|thumb|right|alt=Jim Belushi|[[Jim Belushi]] as James "Jim"]]
[[File:Courtney Thorne Smith.jpg|upright=0.75|thumb|right|alt=Courtney Thorne-Smith|[[Courtney Thorne-Smith]]<br>as Cheryl]]
[[File:Kimberly Williams-Paisley crop.jpg|upright=0.75|thumb|right|alt=Kimberly Williams-Paisley|[[Kimberly Williams-Paisley]] as Dana]]
[[File:Larry Joe Campbell cropped.png|upright=0.75|thumb|right|alt=Larry Joe Campbell|[[Larry Joe Campbell]] as Andrew "Andy"]]
<!-- Note: episode counts are against guidelines set at WP:TVCAST -->
{| class="wikitable plainrowheaders"
|- 
! rowspan="2" | Actor
! rowspan="2" | Character
! colspan="8" | Seasons
|-
! style="width:9%;" | 1
! style="width:9%;" | 2
! style="width:9%;" | 3
! style="width:9%;" | 4
! style="width:9%;" | 5
! style="width:9%;" | 6
! style="width:9%;" | 7
! style="width:9%;" | 8
|-
| [[Jim Belushi]]
| James "Jim"
| colspan="8" {{CMain}}
|-
| [[Courtney Thorne-Smith]]
| Cheryl
| colspan="8" {{CMain}}
|-
| [[Kimberly Williams-Paisley]]
| Dana
| colspan="7" {{CMain}}
| colspan="1" {{CGuest|Special Guest}}{{efn|name=Williams-Paisley|Williams-Paisley makes her only season eight appearance and is credited as special guest in its finale.}}
|-
| [[Larry Joe Campbell]]
| Andrew "Andy"
| colspan="8" {{CMain}}
|-
| Taylor Atelian
| Ruby
| colspan="8" {{CMain}} 
|-
| Billi Bruno
| Gracie
| colspan="8" {{CMain}}
|-
| Conner Rayburn
| Kyle
| colspan="3" {{CNone}}
| colspan="5" {{CMain}}{{efn|name=Rayburn|In the fourth season, Rayburn is initially credited as co-star in the closing credits before being promoted to the main cast in the seventh episode.}}
|-
| [[Mitch Rouse]]
| Ryan Gibson
| colspan="3" {{CNone}}
| colspan="3" {{CRecurring}}{{efn|name=Rouse|Rouse is only credited as guest star in episodes he appears in.}}
| colspan="1" {{CNone}}
| colspan="1" {{CGuest}}{{efn|Rouse makes his only season eight appearance and is credited as guest star in its finale.}}
|-
|}

* [[Jim Belushi]] as James "Jim" (seasons 1–8): the titular role of the series. Jim is a suburban family man, successful construction business owner (Ground Up Design),<ref>{{Cite web|title=According to Jim|url=https://tvseriesfinale.com/tv-show/according-to-jim/|website=tvseriesfinale.com|date=February 2, 2009 |access-date=December 18, 2022}}</ref> and blues garage band frontman. In his stubborn ways, Jim gets himself into various predicaments, which compel him to solve in creative ways, all while battling his own conscience. Despite his best efforts, Jim ultimately admits his wrong-doings to Cheryl and others involved. Shenanigans aside, Jim is happily married to his loving wife, Cheryl. Jim and Cheryl's three children (Ruby, Gracie and Kyle) complement the family dynamic through the series' run. At the end of season 7, Cheryl gives birth to identical twin sons, Johnathan and Gordon.  Jim is an avid Chicago sports enthusiast. In numerous episodes, Jim is seen watching [[Chicago Bears]] football games in his living room. In season 4's "[[List of According to Jim episodes#ep88|Poking the Bear]]" episode, Jim shows his disdain for other football teams when his potential client takes him to a [[Green Bay Packers]] game.  He enjoys playing [[harmonica]] and fronting his garage band. In various episodes, he and his band practice in the garage, except when Cheryl takes over the garage with a yoga class in season 2's "[[List of According to Jim episodes#ep27|The Closet]]" episode, forcing Jim and the band to practice in the attic.
* [[Courtney Thorne-Smith]] as Cheryl (seasons 1–8): Jim's wife, as well as Dana and Andy's older sister. Last names were never revealed for Jim and Cheryl, only middle names, (Orenthal and Mable). 
* [[Kimberly Williams-Paisley]] as Dana Gibson (seasons 1–7; special guest season 8): Cheryl's younger sister. Dana is a vice president for a marketing company and prides herself at being good at her job. She often sides with her sister, Cheryl, during family quarrels.
* [[Larry Joe Campbell]] as Andrew "Andy" (seasons 1–8): Cheryl's younger brother. Andy is a Stanford University graduate and works for Jim as an architect at their construction company, Ground Up Design. He often sides with Jim during family squabbles. He is a sci-fi enthusiast who collects video games, [[Nerf]] guns, [[DVD]] movies, board games, and comic books (as seen in season 6's "[[List of According to Jim episodes#ep138|Separate Ways]]"). Andy considers himself to be a "ladies’ man", but his pick-up lines don't bring many long-term relationships.
* Taylor Atelian as Ruby (seasons 1–8): Jim and Cheryl's first child. Like her mother, Cheryl, Ruby is a leader amongst her siblings.
* Billi Bruno as Gracie (seasons 1–8): Jim and Cheryl's second child. Gracie often sides with Ruby during sibling rivalries against Kyle.
* Conner Rayburn as Kyle (seasons 4–8): Jim and Cheryl's third child. Kyle is not particularly interested in sports and finds it difficult to connect with his father on the topic.
* [[Mitch Rouse]] as Dr. Ryan "Doc" Gibson (recurring seasons 4–6; guest season 8): Cheryl's doctor in season 4's "Poking the Bear" episode. Ryan later becomes Dana's boyfriend, the two eventually marry, and have a child together.