Bumblebee

Bumblebee prime is an Autobot scout and the youngest of the team while he is not as strongly built as others, Bumblebee more than makes up for it with sheer determination and bravery. With his Voice-box seriously damaged in battle he lost the ability to talk where he communicates via Radio/movie dialogue's, nevertheless a true team player where the loss of even one ally will strike him hard and Decepticon's best watch out because Bumble Bee will take whatever risk necessary to win the war.And a skilled strategist and hand picked to lead by Optimus prime's side.

Personality
Bumblebee is a kind hearted Autobot however he display's rather childish attributes as shown when he urinated on Seymour Simmons to force the latter to reveal information even being told off by Optimus, as well as acting stroppy once being instructed to hide In Sam's garage. Despite this in most situations he acts serious on his missions keeping a level head within the group; it should be noted that Bumblebee has made friends with almost everyone on the team as he cares a great deal about his teammates whom in return see Bumblebee as a true friend who always has their backs.And is able to lead his teammates into any battle. Such as the battle of icon and caon the battle against trypticon and the battle on the second ark and during the battle of mission city and Cairo and Chicago and China.

Skills and Abilities
Despite being a young teenager Bumblebee has proven to a skilled warrior, leader  and  he has strength he has been able to take down opponents such as Barricade, Rampage and even go toe to toe with Soundwave. In terms of weaponry, he is armed with a plasma cannon additionally he posses two rocket launchers stored on his back.

998103, B.C
During the war, Bumblebee lead a group of Autobots against the Decepticon army in Tyger Pax, where during the battle the group was tortured while Bumblebee and Arcee were kidnapped and when Megatron returned, he damaged Bumblebee's voice box and arm once the scout refused to talk, but was repaired by Ratchet, but however, still had his voice damaged.

Bumblebee soon on left Cybertron and sent a message to about the events all the sentient beings in the universe while his departure.

First Arrival to Earth and caught by Sector Seven
Bumblebee arrived in the 1940s and took the form of a Volkswagen Beetle and was caught by the division Sector Seven in a garage transforming and smashing up the car he parked behind, fully stomping it.

Continuity crisis
In different continuities, it is shown that the transformer destroying the Mars Rover was Starscream (Also in the  IDW prequel) and sometimes shows it as Bumblebee, and it remains unknown who it really was.

Hubble Space Telescope
Sector 7 spotted Bumblebee during the Hubble Space Telescope mission, and was soon pursued by them and was known as N.B.E.-2.

Return to Earth
Bumblebee then returned to earth, landing in Virginia where he scanned a 1976 Chevrolet Camaro and in search of the Allspark, realized the code was on the glasses of explorer Archibald Witwicky, and later on has Agent Simmons create an operation to capture him, and Bumblebee attempts to spring a trap with a replica Allspark, and is allowed to escape by the Decepticons Starscream, Blackout, and Barricade, and is then pursued by Barricade.

Transformers film
Bumblebee followed Archibald's great-great-grandson Sam at a dealership and slipped himself amongst the vehicles, intending to have the boy purchase him so that he could get close to the family. When proprietor Bobby Bolivia couldn't agree on a price, however, it looked like Sam would wind up buying another car, so Bumblebee used a high-frequency sound wave to blow out the windows of every other vehicle in the lot, leaving Bolivia with no choice but to sell him.

The next day, Sam and his friend Miles Lancaster drove Bumblebee down to a party at the lake, where the disguised Autobot decided to do the boy a favor, playing "Drive" on his radio to subtly convince Sam to kick Miles out and offer his crush Mikaela Banes a ride home. When he neared a romantic spot overlooking the city, Bumblebee turned off his engine and began playing romantically suggestive songs; this didn't have the intended effect, and Bumblebee had to abruptly turn himself back on again when Mikaela started to walk off. After they returned Mikaela home, Bumblebee drove off during the night; Sam, believing it to be a car theft, followed him to a junkyard and witnessed the robot-mode Bumblebee sending a beacon into space to summon his fellow Autobots. Apparently unaware that he had been spotted, Bumblebee then scared off the junkyard's two guard dogs when they menaced Sam.

When Bumblebee returned to the Witwicky home the next day, a terrified Sam fled from what he dubbed "Satan's Camaro", only to wind up being attacked by the Decepticon Barricade, who was also on the trail of the AllSpark. While fleeing this new threat, Sam ran into Mikaela, and Bumblebee then snatched the pair up and drove them away, with Barricade in hot pursuit. Taking refuge at a deserted chemical plant, Bumblebee revealed his robot form to the two humans so he could engage Barricade in combat, eventually knocked the Decepticon out after a brawl. Afterward, Bumblebee—able only to communicate in sound bites broadcast over his radio—properly introduced himself to Sam and Mikaela, and drove them to nearby Griffith Observatory to watch as the other Autobots he had called upon arrived in the sky overhead. Along the way, when Mikaela wondered aloud why a super-advanced robot turned into a "piece of crap Camaro", a mildly insulted Bumblebee scanned a passing 2009 Camaro, taking on its sleek and shiny form himself.

Bumblebee took his friends to a secluded alleyway, where Sam and Mikaela met the other Autobots, including their leader, Optimus Prime. Medical officer Ratchet explained that Bumblebee's inability to speak was a result of an old injury to his vocal processor, which Ratchet then treated with a regenerative plasma beam.[1] Prime explained that Sam had been targeted because he owned a set of glasses belonging to his grandfather, Archibald Witwicky, which had the location on the AllSpark inscribed on their lenses, and the entire group returned to the Witwicky home so they could obtain them.

Though the glasses were soon found, the forces of Sector Seven soon descended upon the house and apprehended Sam and Mikaela. The Autobots wasted no time in rescuing them, but when the interrogation of Seymour Simmons went nowhere, Bumblebee became so annoyed with his attitude that he released lubricant onto the agent. When Sector Seven reinforcements arrived, the Autobots were forced to hide; unfortunately, Sam and Mikaela fell from their hiding place beneath a bridge, and Bumblebee had to reveal himself to save them. Harpooned and frozen by Sector Seven agents, he was captured by the organization, with Optimus Prime regrettably unable to intercede as he knew the Autobots could not do so without harming the humans.

Taken to Sector Seven's base at Hoover Dam, Bumblebee was continually doused with cryoblasts to keep him subdued while experiments were performed on him, until Sam and Mikaela (with some armed persuasion from Captain Lennox) convinced S7 to let him go. Upon his release, Bumblebee almost lashed out at his human oppressors until Sam calmed him down, informing him of the presence of the AllSpark and Megatron in the facility, and that the Decepticons were coming for both. Following the humans to the AllSpark's chamber, Bumblebee hesitantly reached out to the life source of his people and reformatted it, shrinking the cube until it was a size that the humans could manipulate. Cube in hand, Bumblebee and a military escort fled to Mission City, meeting the Autobots en route.

Soon after Bumblebee and the Autobots arrived in the city, the Decepticons descended in force, with a missile attack from Starscream blowing off Bumblebee's legs. To get him to safety, Mikaela and Sam hoisted Bumblebee onto an abandoned tow truck, but Bumblebee pushed the AllSpark into Sam's hands, urging him to run while he still could. As Sam reluctantly left, Mikaela drove Bumblebee away from the fighting to relative safety, but she was soon overcome with guilt for leaving Sam and the battle. With Bumblebee's assent, she turned headed back in, driving the truck in reverse so that Bumblebee could fire his weapons at Brawl, helping take the tank Decepticon out. Subsequently, Sam used the AllSpark to destroy Megatron, and in the aftermath, Bumblebee found that his voice had returned,[1] and he used it to request permission to remain with Sam. Optimus and Sam agreed, and after his legs were repaired, Bumblebee allowed Sam and Mikaela to make out on top of him as Optimus sent his message to space calling other Autobots to Earth.

Relationships
Optimus Prime

Ironhide

Ratchet

Jazz

Sideswipe

Mirage

Hound

Crosshairs

Drift

Enemies
Barricade

Megatron

Lockdown

Soundwave

Trivia

 * Bumblebee and Optimus Prime are currently the only two Autobots to have appeared in all films thus far.
 * This incarnation of Bumblebee was inspired by to create his Prime counterpart.