Allison Janney says 'Mom' producers were shocked when she showed up for the final season with short gray hair
![Allison Janney says Mom producers were surprised to learn she'd ALWAYS been wearing a wig | Daily Mail Online Allison Janney says Mom producers were surprised to learn she'd ALWAYS been wearing a wig | Daily Mail Online](https://i.dailymail.co.uk/1s/2021/04/07/17/41458662-0-image-m-5_1617811927153.jpg)
Allison Janney says Mom producers were surprised to learn she'd ALWAYS been wearing a wig | Daily Mail Online
![Allison Janney gives a look at the set of Mom after Anna Faris' 'nightmare' departure | Daily Mail Online Allison Janney gives a look at the set of Mom after Anna Faris' 'nightmare' departure | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/09/14/23/33182532-0-image-a-21_1600123377843.jpg)
Allison Janney gives a look at the set of Mom after Anna Faris' 'nightmare' departure | Daily Mail Online
![Allison Janney says Mom producers were surprised to learn she'd ALWAYS been wearing a wig | Daily Mail Online Allison Janney says Mom producers were surprised to learn she'd ALWAYS been wearing a wig | Daily Mail Online](https://i.dailymail.co.uk/1s/2021/04/15/21/41811624-0-image-a-57_1618519125884.jpg)