- "You can be whatever you want to be. You're brilliant, man. Absolute best of the best. I can't sit here and watch you run in place in Central City for some old dude who is not going anywhere."
- ―Henry Allen to Barry Allen[src]
Death of Nora Allen
Barry Allen's visit
- "Because you're holding yourself back. You're going in circles. You're working three dead-end jobs, going on four. Where do you even have the time?"
"I make the time."
- ―Henry Allen and Barry Allen[src]
At Iron Heights Penitentiary, Henry was visited by his son, Barry Allen, who was obsessed with proving his father's innocence and said he would keep visiting him. Henry, however, had lost faith that he would ever be proven innocent and that he would likely spend the rest of his life in prison, and so he asked Barry to move on and not visit him again before being taken away by a guard. Barry would later return to show Henry that he got a job at the Central City Police Department Crime Laboratory, to which, Henry looked proud at Barry for doing so.
Henry Allen is an innocent man, being falsely convicted for the murder of his wife. Despite this, he wants the best for his son's future and asked him to never visit him again, though Barry still visited him.
- This is the third live-action portrayal of Henry Allen, followed by Michael Emmet Walsh in CBS's The Flash and John Wesley Shipp in The CW's The Flash.
Behind the scenes
- In DC Comics, originally Henry Allen died from natural causes. However, this was retconned in Flash: Rebirth when the Flash's nemesis, Professor Zoom, traveled back in time to Barry Allen's childhood and murdered Nora Allen to get revenge on the Flash. With the blame placed on Henry, he spent the rest of his life in prison where he eventually died.
- Billy Crudup was uncredited for his appearance in Justice League.
- Henry Allen is the second DC Comics character Billy Crudup portrays. His first portrayal was as Jon Osterman/Doctor Manhattan in the 2009 film Watchmen.
- Terrio, Chris, Whedon, Joss (writers) & Snyder, Zack (director) (November 17, 2017). Justice League.
- "Justice League: Part 1: The Flash Movie Featurette" - YouTube