In her LEGO depictions, she is dark tan and beige green, with light blue near the nostrils and around her eye orbits.
In the Hasbro toy line she is brown with dark blue stripes down her back and has dark green running from her eye orbits to the tip of her snout.
In all of Delta's toy depictions, she has Gecko-like pupils which her film counterpart lacks.
Delta was the second Velociraptor to be created by InGen for the IBRIS Project. She was created using more avian DNA, resulting in more birdlike movements and actions. She belonged to a pack consisting of Blue, Charlie, and Echo. She and her pack were trained by Owen Grady, who imprinted on them in their birth. It is assumed Delta was the second in command of the pack because of her age.
Delta and her packmates assisted their trainer in stopping the genetic hybrid Indominus rex's rampage. After her and her packmates met the Indominus rex, Delta and the rest of the raptors turned against Owen and the others. While Claire was driving the truck, Delta and Echo were chasing behind it trying to kill Claire and the boys. Delta came from behind the vehicle and pounced on a wounded InGen trooper and killed him. She later pursued the humans with Echo as they tried to escape in the vehicle. She tried attacking Gray and Zach Mitchell, who were in the back of the vehicle, but they were able to stun her with an electric prod.
They soon gave up and after hearing Indominus's roar, they ran off the road and into the trees. Some time later, Delta suddenly appeared unexpectedly before Owen, Claire, and the boys. They are forced to flee after the raptor killed Hoskins, who failed at trying to calm her down by copying Owen's hand gesture. After killing Hoskins, Delta continued her pursuit of Owen, Claire and the boys before being distracted by a hologram of a Dilophosaurus that was activated by Gray, but continued her pursuit after realizing it wasn't real. She was eventually met up with Blue and Echo, who had Owen, Claire, Gray and Zach surrounded. The Indominus rex soon showed up and ordered Blue and the other raptors to attack the humans. Blue hesitates, and turns against the Indominus. The hybrid swatted Blue into a wall, knocking her out. Delta and Echo team up and fight the Indominus to avenge their fallen leader. During the fight between the Velociraptor pack and the Indominus, Delta was overpowered and thrown into one of the restaurant's burners, where she was incinerated. 
Barry appears to be Delta's personal trainer. He understands her behavior when she's hungry. Barry most likely had a closer relationship with her than with Owen.
Delta seemed to take an immediate disliking to Hoskins, as shown when Hoskins was petting her; she hissed and growled aggressively and sinisterly. Barry later tells him that she only does that when she's hungry. Delta's hatred for him was fulfilled when Hoskins attempted to calm her down using Owen Grady's hand signal, it failed, and Delta bit Hoskin's arm and swiftly and viciously killed him.
Delta is assumed to be Blue's second in command, as she and Blue can be seen communicating and working together many times throughout the film, such as when Blue and Delta were chasing the van Claire Dearing was driving, or when Leon fell into the Raptor paddock and Blue and Delta were the first to corner him. When the I. rex seemingly killed Blue, Delta and Echo try to avenge Blue, but they both end up losing.
Delta appears in the video game LEGO Jurassic World as a playable character.
Delta first becomes playable, albeit briefly, in the level "Welcome to Jurassic World" just before the training course for her pack starts. When the course starts, she becomes nonplayable in the level and pairs up with Echo. After the course is finished, Leon, who is impatient with their hunting of the pig, accidentally falls into the enclosure of the raptors and becomes cornered by them. Owen and Barry soon intervene and both the pig and Leon escape.
In the level "Under Attack" Delta and her pack are used in the hunt for Indominus rex, but the Indominus turns them over to her side and against the humans. Delta is the third Velociraptor the player(s) encounter. Owen sneaks past her and fires a spring created from nearby parts to push her out of the area. She is later one of the raptors that attack the MVU but are are fought off by Gray, Zach, and Barry.
Her final appearance in the game's story is when she is seen in the end cutscene of "Main Street Showdown" riding Owen's motorcycle while following her pack and Jurassic World's Tyrannosaurus, their new alpha.
In the credits for the game, a minigame plays that has Delta and a Tyrannosaurus rex collecting and smashing objects for studs.
A toy of Delta will be released as a part of the Jurassic World toy line at a retail price of $9 along with her other packmates except Blue. Like the toys of her fellow subordinates Charlie and Echo, her toy lacks the sickle claw that Velociraptor had in both the movies and real life.
There is also a Delta growler figure. It is a new sculpt, complete with the sickle claws on each foot, and is repainted from the Charlie Growler figure.
Behind the scenes
Because several scenes where Delta and Echo are together are in darkness, fans often get the two confused. The most notable instance is that it was originally thought that Echo was the one that got incinerated. This, however, is not the case, as the raptor tossed by the Indominus is brown with blue striping. The only raptor with this coloration is Echo, meaning that it was Delta that got burned. Another, yet not as major of a discrepancy, was that it was initially believed that Echo was the one tazed by the Mitchell brothers. But the raptor in question is green instead of brown and lacks Echo's distinct blue markings, meaning it was Delta that was tazed.
In the Jurassic World Special Edition Junior Novelization Delta is the first raptor of the Jurassic World Velociraptor Pack to die instead of Charlie. Furthermore, due to her death in the novelization, Echo is the one that kills Hoskins instead of Delta.
- Empire Magazine - Access All Areas: Jurassic World, Archived from https://web.archive.org/web/20150609212747/http://www.empireonline.com/jurassicworld/
- LEGO Jurassic World - Delta Profile (April 30, 2015) Retrieved from http://www.lego.com/en-us/jurassicworld/characters/delta-737214c74a9c4d1d8583d4a4c23b8826
- Business Insider - Here's what the dinosaurs in 'Jurassic World' will look like (2015, February 17) Retrieved from http://www.businessinsider.com/jurassic-world-dinosaurs-2015-2/
- Jurassic World Special Edition Junior Novelization, page needed