Meet the Star-Studded Cast of Tom Holland's New Show, "The Crowded Room"

In the series, Christopher Abbott stars as Stan, Danny's lawyer and a Vietnam War veteran. In real life, Gary Schweickart served as Milligan's defense attorney, who could very well be an inspiration for the character of Stan.

As for Abbott, he gained notoriety for his role as Captain John Yossarian in the Hulu series "Catch-22" and as Charlie in "Girls."