Dr. Charles Hendrickson is the main antagonist of Honey, I Blew Up the Kid.
Role in the film
Hendrickson is a high-ranking employee at Sterling Labs. He is assigned to work with Wayne Szalinski, inventor of the shrinking machine, to develop the new machine that makes objects grow in size. However, Hendrickson refuses to listen to Wayne's ideas and insists on doing everything his own way. Hendrickson has also arranged with the lab's security personnel to bar Wayne from accessing the lab's equipment without his permission.
On a Saturday, during his day off, Hendrickson is playing tennis when he receives a call from Smitty, the security guard at the lab, informing him that Wayne is there trying to work on the machine without his permission. By the time Hendrickson gets there, Wayne has already left, but Hendrickson finds that Wayne's experiments caused a power surge that damaged the equipment. Unbeknownst to Hendrickson, Wayne had gotten the machine to work when he accidentally zapped his two-year-old son, Adam, with the machine's ray. At first, it looked like nothing had happened, but whenever Adam came into contact with electrical appliance it caused him to grow.
Wayne goes back to the lab to try and shrink Adam back to normal size but is instead confronted by Hendrickson, who informs Wayne that he is off the project. Wayne reminds Hendrickson that he does not have the authority to make that decision, that honor goes to Clifford Sterling, the CEO, but Hendrickson informs Wayne that Sterling will not want to listen to him after the damage he caused. Wayne does not tell Hendrickson that he managed to get the machine to work as he does not want to subject Adam to numerous observations and tests (he explains that the very large, gibberish-speaking person who accompanied him to the lab was a relative visiting from Yugoslavia).
After Wayne leaves, Hendrickson instructs two lab technicians to try and find out what Wayne was up to. After they uncover a bizarre image of Adam and his stuffed toy, Big Bunny, Hendrickson decides to pay Wayne a visit.
Hendrickson makes his way to the Szalinskis' house, only to find a 14-foot-tall Adam playing in the street, surrounded by bystanders. Adam has caused a lot of damage, and Hendrickson arranges for him to be taken away in a large truck. Hendrickson's plan is to have Adam, whom he believes to be mutated, to be taken back to the lab to undergo testing (much to Wayne's outrage). However, the truck passes by high-voltage power lines causing Adam to grow even bigger. He bursts out of the truck, knocking it over, and proceeds to pick up his brother, Nick, and babysitter, Mandy, and put them in his pocket before heading toward Las Vegas.
Hendrickson summons Sterling to the scene. When Sterling arrives, Wayne pleads with him to give him a chance, promising to return his son to normal size. Hendrickson proceeds to mock Wayne, prompting Wayne to deliver an impassioned speech about inventors. Sterling realizes that Wayne isn't the fool whom Hendrickson made him out to be, and tells Hendrickson that he is fired.
Hendrickson refuses to accept his dismissal and vows to subdue Adam his own way. He gets one of the members of the board of directors at Sterling Labs, Terrence Wheeler, to authorize an airstrike with the Nevada State Military with the usage of tranquilized cartridges. The captain, Ed Myerson, is reluctant to go along with this plan, but Hendrickson produces the required paperwork for the operation and takes off in the helicopter. By this point, Adam has grown so large that he towers over Las Vegas and is terrorizing the people. He has picked up the Hard Rock Cafe guitar sign and, thinking it's a real one, is trying to play it. Hendrickson aims the gun at Adam, but just as he fires Myerson makes a sudden maneuver causing him to miss. Hendrickson threatens Myerson that he'll (Hendrickson) make sure that this will be the last mission he (Myerson) flies if he (Myerson) makes him (Hendrickson) miss again, and shoots a second tranquilizer dart at Adam; it misses and hits the guitar instead, causing Adam to drop it and start crying. While the crowd begins to feel guilt-ridden for Adam, an unmoved Hendrickson prepares to aim again, only to be stopped by a giant-sized Diane Szalinski (whom Wayne had enlarged using his original machine), who grabs hold of the helicopter and tells them to back off (of which Myerson was more than willing to comply) before placing it on the ground and damaging it. She then gets Adam to hold still before they are returned to normal size with the machine.
Once back on the ground, Hendrickson reluctantly commends and congratulates Wayne on returning his son to normal size. Diane then angrily confronts Hendrickson about trying to shoot Adam, but he assures her that the tranquilizers would not have hurt him. She pretends to buy it at first before turning and punching Hendrickson in the face, knocking him out cold. Sterling calls for an ambulance, but remains firm on his decision to fire Hendrickson, jokingly remarking that Hendrickson is "overcome with the prospect of having to find a new career."