Nearly two decades after it aired, Katherine Heigl and Jeffrey Dean Morgan are getting candid about one of the most controversial and bewildering storylines on "Grey’s Anatomy": the “Ghost Denny” arc.

With two decades of wild, emotionally-charged television to pull from, Grey’s Anatomy has given fans plenty of unbelievable moments. After 20 years, Katherine Heigl recently admitted she can’t watch ...

"Grey's Anatomy" alum Katherine Heigl shared what real-life experience she used to inform her performance of grief in this iconic "Grey's Anatomy" Izzy scene.

The verdict is in: the Ghost Denny era of Grey’s Anatomy was awkward and “confusing for everyone.” Just ask Katherine Heigl and Jeffrey Dean Morgan. “It's funny because I don't remember much of that ...

You would think that a series set in a regular hospital would be a pretty grounded affair, but Grey's Anatomy has given fans many outlandish moments that have pushed believability beyond its medical ...