Kristen Johnston is sticking around on Mom: The Emmy-winning 3rd Rock From the Sun alum has been promoted to series regular for Season 7, TVLine has confirmed. Johnston first debuted in a Season 5 episode as ex-con Tammy, who was a foster sister to Bonnie (Allison Janney) during their teen years. Mom returns Thursday, Sept. […]
Kristen Johnston is sticking around on Mom: The Emmy-winning 3rd Rock From the Sun alum has been promoted to series regular for Season 7, TVLine has confirmed. Johnston first debuted in a Season 5 episode as ex-con Tammy, who was a foster sister to Bonnie (Allison Janney) during their teen years. Mom returns Thursday, Sept. […]
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