Sam Trammell will play Hazel’s father, Mr. Lancaster, in The Fault in Our Stars movie (Spoiler alert).

Hazel’s dad does not have a prominent role in the book and we presume he won’t in the film either. Nonetheless, Hazel has a couple of interactions with him, including one following the death of Gus.

As we previously reported, Shailene Woodley will star as Hazel Grace. Ansel Elgort will play Augustus Waters. Laura Dern will play Hazel’s mother and Nat Wolff will play Gus’ best friend Isaac.

The news of Trammell’s casting may come as a disappointment to a few who wanted author John Green to play the father role. In February, Green jokingly said in a YouTube video he was open to playing the role.

Trammell is known in Hollywood for his role as Sam in HBO’s True Blood, which is about to wrap its sixth season this Sunday.

The Fault in Our Stars will begin shooting in Pittsburgh, Pennsylvania in roughly two weeks under the direction of Josh Boone. Woodley is set to cut her long hair this week to begin preparing for the role. She’ll be donating her locks to an organization called Children with Hair Loss.

Thanks to The Wrap, who broke the news.