Heath Ledger's father shares the late actor's diary used while playing the Joker
The diary is filled with notes, sketches, and references that helped Ledger develop his most iconic role.

A photo of Heath Ledger (left) alongside the Joker (right)
We very rarely get to see into an artist’s process. It often feels like great works—be it in music, paintings, or performances—sort of appear out of nowhere. Perfect and fully formed. But in reality, these works are the result of a thousand small decisions, days of preparation, and more often than not, an abundance of failed experiments.
So when we do get to peel back the curtain to see what might have inspired these works that take on a life of their own, that in itself has profound power, since it reminds us that creating something is just as much about commitment as it is about talent.
That is partially why people continue to have such a visceral reaction to seeing excerpts from the late, great Heath Ledger’s diary while preparing for his iconic role of The Joker in Christopher Nolan's The Dark Knight.
In the video, Ledger’s father, Kim Ledger explains how his son “locked himself in a hotel room for weeks,” preparing for filming. The pages of the journal reveals how the actor was inspired by old school Batman comic book clippings, images of jesters and clowns, and interestingly enough, the character Alex in A Clockwork Orange.
A page that beings with "It's simple. Kill the Batman." preview.redd.it
There’s even an image of a hyena, which seems like a clear reference for his Joker’s signature cackle.
- YouTubewww.youtube.com
There is, of course, quite a bit of dark, disturbing things scribblings in there, like listing “blind babies” and “AIDS” under “things that make me laugh,” all of which leaves clue as to how Ledger was able to authentically drop into a chaotic and twisted mind.
A page from Heath Ledger's diary while in prep for The Dark Knightpreview.redd.it
The diary first appears in the 2012 documentary series Too Young to Die, which not only follows Ledger’s untimely death, along with other greats like Phillip Seymour Hoffman and Kurt Cobain. But clips of it have recently been resurfacing online, and with it a renewed appreciation for how devoted Ledger was to his craft.
“Remarkable lengths he went to to get his character performance just right and take it to the next level.
“His portrayal of the Joker was disturbing and brilliant. One of the best performances of all time. Truly legendary. The diary is unsettling, as is the role of the joker. The mind space he might have been in to play such a dark character is hard to think about. The award he received for his performance was well deserved. Such a talented actor, gone too soon.”
“He disappeared so well into the character. It’s a shame it took such a large toll on his mental health. Hope he knows he’s still loved and admired. RIP Heath.”
Ledger passed away on January 22, 2008, before The Dark Knight was released, due to an accidental overdose of prescription medications. It was a death that shocked fans (keep in mind he was practically the first Hollywood star to pass away publicly in the internet age) and there were many speculations that embodying Joker in such an intense way helped create his tragic ending. While that theory could seem possible, given some of the details in Ledger’s diary, his family has since rebuked any indications that his mental health was negatively impacted by it.
Plus, this kind of work is very normal for actors, especially when trying to find their way through some pretty dark psyches. For example, Rosamund Pike previously shared how she sliced open a pig at a butcher shop for her role in Gone Girl. If you’ve seen it, you know which scene we’re referring to.
One of the saddest things to come of Ledger’s passing is that he wouldn’t get to witness the incredible appreciation that would come for his hard work. Not only did it earn him a posthumous Academy Award for Best Supporting Actor, but it would become a role that people continue to be inspired by, even now. When an artist truly pours themselves into their art, as he clearly did, it changes the world.
There's a reason why some people can perfectly copy accents, and others can't
Turns out, there's a neurodivergent link.
A woman in black long sleeve shirt stands in front of mirror.
Have you ever had that friend who goes on vacation for four days to London and comes back with a full-on Queen's English posh accent? "Oooh I left my brolly in the loo," they say, and you respond, "But you're from Colorado!" Well, there are reasons they (and many of us) do that, and usually it's on a pretty subconscious level.
It's called "accent mirroring," and it's actually quite common with people who are neurodivergent, particularly those with ADHD (Attention Deficit Hyperactivity Disorder). According Neurolaunch, the self-described "Free Mental Health Library," "Accent mirroring, also known as accent adaptation or phonetic convergence, is the tendency to unconsciously adopt the accent or speech patterns of those around us. This linguistic chameleon effect is not unique to individuals with ADHD, but it appears to be more pronounced and frequent in this population."
Essentially, when people have conversations, we're constantly "scanning" for information—not just the words we're absorbing, but the inflection and tone. "When we hear an accent, our brains automatically analyze and categorize the phonetic features, prosody, and intonation patterns," writes Neurolaunch. For most, this does result in copying the accent of the person with whom we're speaking. But those with ADHD might be more sensitive to auditory cues. This, "coupled with a reduced ability to filter out or inhibit the impulse to mimic…could potentially explain the increased tendency for accent mirroring."
While the article explains further research is needed, they distinctly state that, "Accent mirroring in individuals with ADHD often manifests as an unconscious mimicry of accents in social situations. This can range from subtle shifts in pronunciation to more noticeable changes in intonation and speech rhythm. For example, a person with ADHD might find themselves unconsciously adopting a Southern drawl when conversing with someone from Texas, even if they’ve never lived in the South themselves."
People are having their say online. On the subreddit r/ADHDWomen, a thread began: "Taking on accents is an ADHD thing?" The OP shares, "My whole life, I've picked up accents. I, myself, never noticed, but everyone around me would be like, 'Why are you talking like that??' It could be after I watched a show or movie with an accent or after I've traveled somewhere with a different accent than my 'normal.'
They continue, "Apparently, I pick it up fast, but it fades out slowly. Today... I'm scrolling Instagram, I watch a reel from a comedian couple (Darcy and Jeremy. IYKYK) about how Darcy (ADHD) picks up accents everywhere they go. It's called ADHD Mirroring??? And it's another way of masking."
(The OP is referring to Darcy Michaels and his husband Jeremy Baer, who are both touring comedians based in Canada.)
Hundreds of people on the Reddit thread alone seem to relate. One comments, "Omfg I've done this my whole life; I'll even pick up on the pauses/spaces when I'm talking to someone who is ESL—but English is my first language lol."
Sometimes, it can be a real issue for those around the chameleon. "I accidentally mimicked a waitress's weird laugh one time. As soon as she was out of earshot, my family started to reprimand me, but I was already like 'oh my god I don’t know why I did that, I feel so bad.'"
Many commenters on TikTok were shocked to find out this can be a sign of ADHD. One jokes, "Omg, yes, at a store the cashier was talking to me and she was French. She's like 'Oh are you French too? No, I'm not lol. I'm very east coast Canada."
And some people just embrace it and make it work for them. "I mirror their words or phrase! I’m 30. I realized I start calling everyone sweetie cause my manager does & I work at coffee shop."
This article originally appeared in May.