Conversation so far:
Did Quaid participate in theater?
In 2004, Quaid appeared on stage undertaking the starring role of Frank in the world premiere of Sam Shepard's The God of Hell.
did he participate in any other roles?
It marked the second time that Quaid starred in a Shepard play, the first being the long running Broadway hit True West.

Question: was Quaid successful?
Self-contained rewrite: Was Randy Quaid successful?