# Mackenzie Phillips reveals which One Day at a Time costar she didn’t get along with: ‘He wasn’t very nice’

> **Newsylist Open Intelligence Dossier** · First detected: 2026-09-13 21:29 UTC · Category: Entertainment · Sources: 5 · Current Velocity: 2.8

## Key People, Organizations & Locations
Phillips, One, Day, Time, Mackenzie

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| AOL.com | Mackenzie Phillips Names the ‘One Day at a Time’ Costar Who ‘Wasn’t Very Nice’ to Her | 2026-09-12 18:01 | [Source Link](https://news.google.com/rss/articles/CBMiggFBVV95cUxQVGQ0UDR3RkpYWm9wcXQ4UFU1a3JxM2FQTkZNbzBVTmVhMlBSTll3SkpPQlZpTlVyY3FST0ZaajZJdzQ2N2dGcmFaQXJxcTN0UnJzeEYyVWFYZWE3TUlQa1BTMHlfN05iT0JZSlRoLUxSTnBXQ094bGVuS0pqMDJDVzBR?oc=5) |
| Closer Weekly | Valerie Bertinelli and Mackenzie Phillips Were Equally ‘Jealous’ of Each Other on ‘One Day at a Time’ | 2026-09-12 18:01 | [Source Link](https://news.google.com/rss/articles/CBMiwAFBVV95cUxPN0JhLVktNFY4UUlDYW1pWXdtREQxX1pZc2dmdnFXTHhud3FzbEp0SnVtVzFLUlh4cDd2SXF5ZDFlOEc3X0J6TkJ3eDhuaFVKODJMWl9rdkRDRVdwUExvVS1naTlPZXhLYUlDeUlRZlZkVTZhSUFhcWZXY1hJM0lnUkNwZEYxbDJZV2dzY3JmQll0WWh4WXNTT0xZZUZhaU9ndklwdXdXbHk2Sjc0bXA3UjdWLTNRVldMSWo1REdqZVg?oc=5) |
| Us Weekly | Mackenzie Phillips Recalls Struggling to Get Along With This ‘One Day at a Time’ Costar | 2026-09-12 18:01 | [Source Link](https://news.google.com/rss/articles/CBMiqwFBVV95cUxOREV4UjlXSFF1Wno2LWtWcVd6SmpLWHBMRlhJcWhKWDJOUXlJQlR3RFFYLWY2RjVfLTkwWElidDVmdkNsU2d6QnUxYjQ4aFNtUUxQaWdvcDNsRWRwNG44MlBHUUJMcURzWHltMk1keFVaZWFwNDltcmk1emhONjZsMmVNRHB3c2o1aEM3UWpzRHRHZHpHcVpzMlNIMmJuNUNBUGZTR3l1ek5ZcEk?oc=5) |
| People.com | Valerie Bertinelli and Mackenzie Phillips Were ‘So Jealous’ of Each Other on ‘One Day at a Time’ | 2026-09-12 18:01 | [Source Link](https://news.google.com/rss/articles/CBMivAFBVV95cUxPbmR6X2ozeFdsRmd0OW1xTXZZQ1NNRmtnUFVHX2VWSTQ3c0pyTU1UMDFBOC1ra1F2M2Z3WmVwQ3gtNGlQalRPd0RFcVUtb2FsTkNucEVwY2s1SE15dTEwZzNyeEVoNkc1NVVYeHFrUlBlUlhZUDBOelVWcTFnQjlVdmZRT0VlTTJVU19TOVNsTTdQRk5BWTdVUFkyNzZMcUh5VjkzZDloZWo1ZTU0VUtnVFN3bl9mYldfQkJ3Uw?oc=5) |
| ew.com | Mackenzie Phillips reveals which One Day at a Time costar she didn’t get along with: ‘He wasn’t very nice’ | 2026-09-12 18:01 | [Source Link](https://news.google.com/rss/articles/CBMikwFBVV95cUxOVWlVNWpxSWxLUThpUl84WlE0YmVUSnBuQktCN0tkbkhvMWJkS0VOYlBCSzA5Q190UXdsRmotVmk4V3RMLUM5MTB6OEtzd1hPd2VOcE5uWUhYRUNCek5JaUZOc096M3Ftc2tjN2p1VXN0dHlHbGdtLTlOc3NZVWRIaTdmbHRvRE5EUGlMR1ZXamxXdmc?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-09-13/mackenzie-phillips-reveals-which-one-day-at-a-time-costar-she-didn-t-get-along*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*