Editing Growing Pains (section)

=== Recurring ===
* [[Andrew Koenig]] as Richard Milhous "Boner" Stabone (seasons 1–4), Mike's friend; left to join the [[United States Marine Corps]].
* [[Chelsea Noble]] as Kate MacDonald (seasons 5–7), Mike's girlfriend. They both meet at Alf Landon Junior College. She later becomes a model and appears in the 1992 [[swimsuit]] edition of The Sporting Man magazine.<ref>{{Cite book |last=Terrace |first=Vincent |title=Television Series of the 1980s: Essential Facts and Quirky Details |publisher=Rowman & Littlefield Publishers |year=2017 |isbn=9781442278318 |pages=92}}</ref>
* Jamie Abbott as Stinky Sullivan (seasons 2–6), Ben's friend.
* [[K. C. Martel]] as Eddie Ziff (seasons 1–7), Mike's friend.
* [[Sam Anderson]] as Principal Willis DeWitt (seasons 1–7), Mike's history teacher in season one and principal from season 2 onward.
* Betty McGuire as Kate Malone (seasons 1–7); Maggie's mother.
* Lisa Capps as Debbie (seasons 2–4), Carol's friend.
* [[Rachel Jacobs]] as Shelley (seasons 2–4), Carol's friend.
* [[Gordon Jump]] as Ed Malone (seasons 1–7), Maggie's father.
* [[Julie McCullough]] as Julie Costello (seasons 4–5), Mike's former girlfriend who was originally hired by Jason to be Chrissy's nanny.  Julie is a sophomore at [[Columbia University]] majoring in Child Psychology. When she and Mike break up, she quits school and becomes a waitress at Le Village Restaurant.<ref>{{Cite book |last=Terrace |first=Vincent |title=Television Series of the 1980s: Essential Facts and Quirky Details |publisher=Rowman & Littlefield Publishers |year=2017 |isbn=9781442278318 |pages=92}}</ref>
* [[Bill Kirchenbauer]] as Coach Graham Lubbock (seasons 2–3; starred in spin off ''[[Just the Ten of Us]]''), a gym teacher.
* [[Jane Powell]] as Irma Seaver (seasons 4–6), Jason's mother.
* Jodi Peterson as Laura Lynn (seasons 4–6), Ben's girlfriend/love interest.
* Kevin Wixted as Bobby Wynette (seasons 2–3),  Carol's former boyfriend.
* Christopher Burgard as Dwight Halliburton (season 7), Carol's love interest.
* [[Evan Arnold]] as Richie Flanscopper (seasons 1–3), Carol's school classmate who has a crush on her.
* [[Fred Applegate (actor)|Fred Applegate]] as Mr. Fred Tedesco (season 7), the principal of the learning annex where Mike teaches.
* [[Matthew Perry]] as Sandy (season 4), Carol's love interest of 3 episodes. He died several hours after a DUI accident following 'a few beers'.