How Dylan O'Brien's Own 'Deep Pain' Helped Craft His Most Personal Role Yet

For Dylan O’Brien, Twinless meant confronting an emotion he’s long dreaded.

“Grief is, funny enough, something I have not experienced a ton,” O’Brien, 34, exclusively tells Us Weekly. “I think about it in a grateful way and in a fearful way, in that I fear I won’t be able to handle it.”

Yet the 34-year-old found himself drawn to this script about, as he calls it, a very “unique type of loss.”

Written and directed by O’Brien’s costar James Sweeney, Twinless casts the versatile actor in dual roles as Roman, a 20-something trying to process the death of his twin, and that brother, Rocky. At a grief support group, Roman connects with Dennis (Sweeney), a fellow “twinless” soul who quickly becomes his fragile lifeline. But as their friendship deepens — and boundaries blur — secrets threaten t