I don't understand my feelings. I really don't. I don't understand how I could hate you so much after so much time. How, no matter how much I'd like to not hate you, I hate you even more. It grows.

Shepard's early science fiction play The Unseen Hand (1969) would influence Richard O'Brien's stage musical The Rocky Horror Show. The book includes "short stories poems and narrative sketches. "
Shepard starred in the 2011 film Blackthorn.

Shepard was nominated for an Academy Award for Best Supporting Actor for his portrayal of pilot Chuck Yeager in The Right Stuff (1983). Shepard received the PEN/Laura Pels International Foundation for Theater Award as a master American dramatist in 2009.