Henry is best known for doing his own thing when it comes to any sort of case or off duty business, ranging from locating a new kind of ice cream with George (ep.915) or watching boxing fights with Jackson (ep.803). He considers George Crabtree his best friend, and the feeling seems to be mutual with George since the pair of them go out and enjoy themselves, whether it be a vaudeville performance (ep.809) or having a drink in the bar (ep.714). Although they squabble and fight, Henry and George are always there for each other in the end.
Henry's mother is from the Gaspé in Quebec, and as a result, he knows how to speak French (ep.209 and 405). As well as this, he has a homosexual cousin, so he was aware of where the secret gay club was held in Toronto (ep. 105). The Higgins family also owned a piano shop when Henry was growing up, and although he did not enjoy playing, he learnt what all of the parts were (ep.717).
When guarding the elevator to escort a rare painting to it's safe keeping spot, Henry reveals that he suffers from vertigo and gets dizzy just standing on the bottom of a ladder (ep.306).
Constable Henry Higgins is prone to making frequent mistakes in episodes, but usually has a redeeming moment towards the end. He also tends to let words slip out of his mouth before thinking about them, but means no harm. Such an example of this is during Unlucky In Love when he accidentally insults Baby Roland Connor when Detective Murdoch is worried about Roland not walking yet and suggest that 'Maybe he's just slow.' which annoys Murdoch. He later apologises sincerely for this though, never meaning to speak ill of Murdoch's son. Nevertheless, Henry has proven himself to be good with young children, during this episode as well as Raised On Robbery.
An example of one of Henry's classic mistakes is in Weekend at Murdoch's when Henry and George were assigned to protect Roger Newsome so that he could testify against murderer Rex Gray, but Newsome is desperate to get a haircut for his lecture. As George goes and gets dinner, Henry remains fast asleep on the sofa in the hotel room, which allows Newsome to escape, ultimately leading to his death.
When Prince Alfred visited Toronto and Constable George Crabtree was assigned to his security, Henry assisted Detective Murdoch with an investigation into the murder of Maggie Gilpatrick. Murdoch taught him about fingermarks and how to trace a person's next of kin. When it was determined there was a plot to kidnap Prince Alfred, Henry was selected to impersonate the prince to help safeguard His Highness in The Prince and the Rebel.
In War on Terror, Henry is caught in an explosion along with George and is rendered unconscious, resulting in George attempting to find the culprit behind the bombing of Milne's store. The bomber is caught, and Henry returns to the station house having been hospitalised for the majority of the episode.
Henry was one of the main protagonists in the Beyond Time web series along with Jackson and Rebecca James as the two constables consult Terrence Meyers to help them with this time travelling mystery. During this web series, Meyers gives Henry a lot of nicknames because he doesn't know Henry's actual name, which infuriates him. When he and Jackson face off against Meyers, he finally loses his temper with Meyers, and uppercuts him before reminding him of his real name.
Henry can also take his high ranking position a little bit too far sometimes, which irks some of the other constables that think he's getting too big for his boots. But when Henry takes it too far in Painted Ladies, Jackson and McNabb decide to play a trick on Henry with the flirtation cards being used by women. They leave one on Henry's desk and tell him that Sadie Talbot left it there for him, and the two smirk as Henry falls for their trick. They watch as Henry attempts to go and talk to Sadie, but he loses his confidence, and after Jackson tells him 'You can't fail!' is when we see Henry's charm with women show it's true colours. He tells them that he always does fail with women before running off back to the Station House. After a heart to heart conversation about losing his self confidence with George, Henry goes back to where Sadie works, still oblivious that the card was a trick. When Jackson asks George where Henry has gone, George tells him, and Jackson confesses the trick on Henry to him. They both run to find Henry, but it's too late to stop him. Henry tells Sadie 'It's a beautiful dress you're wearing, make a lovely decoration for my floor' but Sadie can tell he means well, and invites him to come back at eight, which takes Jackson and Crabtree by surprise.
In the Season 11 premiere, it is revealed early on that Henry survived the shooting, having been taken to hospital after Detective Watts finds him alive. He is believed to be the only one to survive, and returns to the station with his arm in a sling, where he remembers a memory of George throwing paper at him for a joke, showing just how much he misses his best friend. In the beginning, Penelope Marsh welcomes him back, advising him to do as he's told. Determined to make those who killed his friends pay, Henry assists Watts in cleaning up Murdoch's office, and helps sneak Julia into the cells in her disguise. Marsh questions Henry as to why he and the others were shot, where he reminds here that they were 'more than shot, two were killed, good friends of mine.' As the episode ends, Henry is most pleased that his best friend is alive, and George jokes that he wasn't going to die because Henry still owed him $20. Henry insists he paid it back, because he invested it into the Police Widow's Fund 'upon his demise'. After a heartfelt tribute to Jackson, Brackenreid gives Henry and George a glass of whiskey each, and they toast to their fallen friend in the closing scene.
In 8 Footsteps, Henry notices that Ruth Newsome is in attendance of the dinner, and purposely interviews her. But when she introduces him to her fiancé, Herbert Wilson, he is clearly upset at the arrangement. Desperate to prove that he isn't right for her, Henry digs into his background, and discovers that Herbert is in need of money, which explains why he is marrying Ruth. But when he is revealed to be the murderer, Herbert explains that he would never marry someone like Ruth, resulting in a hard punch from Higgins. Henry then crosses over to Ruth, and dips her before kissing her, revealing his true feelings about her.
Jacob Edward James
Introduced in The Murdoch Sting, Jacob Edward James is an attorney of James, James, Jarvis, and James. This disguise reappears in Marked Twain except instead with the alias of Henry James, topped with a heavy British accent.
- Lachlan Murdoch first auditioned for the role of George Crabtree along with Jonny Harris who got the part. The producers liked Lachlan so much that they created the role of Henry Higgins for him.