create the scene, the crew used two externally identical cars; one was drivable, and the other was a shell of car, and was hooked to a cable rig. After taking a week to get everything set up, the crew used a nitrogen cannon to launch the second, undrivable car through the garage door via wires. The episode featured a guest performance by Cameron Monaghan as the mind controller Tyler Carson. The actor tweeted after the episode's broadcast, "Fringe was cool. What person in the world doesn't wish they had mind-controll powers!" "Of Human Action" also had guest appearances by Andrew Airlie, Peter Graham-Gaudreau, John Tench, Vincent Gale, Jacqueline Ann Steuart, and Doron Bell Jr. Music and cultural references "Of Human Action" featured two songs, "Subtle Duck" by Charles Bissell and "Angel Love" by Samantha James. In honor of The Simpsons 20th anniversary, several shows in Fox's lineup contained references to the show. In "Of Human Action", Tyler uses a Homer Simpson Pez dispenser to store his mind-control drugs, and the town he and Peter journey to is Springfield, the same name of the town in The Simpsons; when Springfield appears in the sky, no state is shown, just like the ambiguity concerning the home state of The Simpsons. Reception Ratings On its initial November 12, 2009 broadcast in the United States, "Of Human Action" was watched by an estimated 5.89 million viewers, and earned a 2.2 ratings share among adults 18–49, tying the season average. This was a 29 percent increase from the previous episode's 1.7 rating, though that episode's low ratings have been attributed to the unexpected end to the 2009 World Series. Despite the ratings improvement, "Of Human Action" led Fringe to finish in fourth place for its timeslot. Reviews "Of Human Action" received a very positive reaction from MTV's Josh Wigler, writing "As a stand-alone episode with some interesting character insight, this week's Fringe was a success. It might also be a mythological success, too, should the big reveal at the end—the fact that Massive Dynamic has inundated multiple children with telepathic abilities—pan out in future episodes." Andrew Hanson of the Los Angeles Times enjoyed being able to see more of Massive Dynamic, and praised Astrid's increased presence in the plot. Airlock Alpha writer Tiffany Vogt called it a "gripping story with much emotional resonance," especially with the father-son parallels between Peter and Tyler. The A.V. Club's