Jenna Fischer revealed that Christina Applegate was one of the first people she called after being diagnosed with an aggressive form of cancer.

Jenna Fischer is opening up more about her battle with breast cancer. On Monday, the Office star sat down with Today's Hoda Kotb and revealed that Christina Applegate was one of the first people she reached out to for support after she was diagnosed.

The actress - now cancer-free - discussed undergoing chemo and more in her first big interview since revealing her diagnosis