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Description
Billy Cranston is a fictional character in the Power Rangers universe. He is the Blue Ranger (triceratops) in the series Mighty Morphin Power Rangers, and was portrayed by actor David Yost. Billy is the only original Power Ranger to remain for the entire MMPR series, and is the second longest-serving Ranger overall behind Tommy Oliver. Until his departure, he is considered the brains of the Power Rangers team, creating many gadgets with which to solve problems that not even Zordon foresees, and he even invents the first team's wrist-worn communication devices. A reimagined version of Billy appears in 2017 reboot film, played by actor RJ Cyler.

Quick Facts First appearance, Portrayed by ...
Character history
Television
Mighty Morphin Power Rangers
Billy is one of the five "teenagers with attitude" selected by Zordon to become the original Power Rangers, along with Jason Lee Scott, Zack Taylor, Trini Kwan and Kimberly Hart. Billy becomes the Blue Power Ranger and is given both the Triceratops Power Coin and the Triceratops Dinozord.

Billy begins the series as the stereotypical "nerd." The other Rangers, especially Trini, defend him loyally, but Billy later evolves to become a stronger individual. He is one of the top members of Angel Grove High's science club and often helps its younger members with their experiments. One such example is with Willy, a young boy he helps to create a virtual reality simulator for a Science Fair. In the episode "High Five," Billy creates not only the wrist communicators the Power Rangers use, but also the interface that allows the devices a remote access to the Command Center's teleportation unit.

It is revealed that, due to an experience in his youth when he was bitten by a fish during an experiment involving whirlpools, Billy developed icthyophobia: fear of fish. This fear affects him well into his teens, when Rita uses a spell to exacerbate this fear. When he is the last Ranger left able to contend with the Goo Fish monster, Billy overcomes the spell and then, after helping to free his friends and defeat the monster, completely overcomes the fear itself on a fishing trip with Ernie, the owner of the Youth Center.

Each of Billy's teammates have a unique skill to offer the team and, in Billy's case, it is his vast intelligence. He seeks out to improve himself physically, and the audience sees him transition over time from the suspenders-wearing "brain" to a confident, hyper-intelligent athlete with fighting skills, thanks in great part to Trini's Uncle Howard. Jason and later Tommy help graduate Billy to the red belt level in karate.

Description
Billy Cranston is a fictional character in the Power Rangers universe. He is the Blue Ranger (triceratops) in the series Mighty Morphin Power Rangers, and was portrayed by actor David Yost. Billy is the only original Power Ranger to remain for the entire MMPR series, and is the second longest-serving Ranger overall behind Tommy Oliver. Until his departure, he is considered the brains of the Power Rangers team, creating many gadgets with which to solve problems that not even Zordon foresees, and he even invents the first team's wrist-worn communication devices. A reimagined version of Billy appears in 2017 reboot film, played by actor RJ Cyler.

Quick Facts First appearance, Portrayed by ...
Character history
Television
Mighty Morphin Power Rangers
Billy is one of the five "teenagers with attitude" selected by Zordon to become the original Power Rangers, along with Jason Lee Scott, Zack Taylor, Trini Kwan and Kimberly Hart. Billy becomes the Blue Power Ranger and is given both the Triceratops Power Coin and the Triceratops Dinozord.

Billy begins the series as the stereotypical "nerd." The other Rangers, especially Trini, defend him loyally, but Billy later evolves to become a stronger individual. He is one of the top members of Angel Grove High's science club and often helps its younger members with their experiments. One such example is with Willy, a young boy he helps to create a virtual reality simulator for a Science Fair. In the episode "High Five," Billy creates not only the wrist communicators the Power Rangers use, but also the interface that allows the devices a remote access to the Command Center's teleportation unit.

It is revealed that, due to an experience in his youth when he was bitten by a fish during an experiment involving whirlpools, Billy developed icthyophobia: fear of fish. This fear affects him well into his teens, when Rita uses a spell to exacerbate this fear. When he is the last Ranger left able to contend with the Goo Fish monster, Billy overcomes the spell and then, after helping to free his friends and defeat the monster, completely overcomes the fear itself on a fishing trip with Ernie, the owner of the Youth Center.

Each of Billy's teammates have a unique skill to offer the team and, in Billy's case, it is his vast intelligence. He seeks out to improve himself physically, and the audience sees him transition over time from the suspenders-wearing "brain" to a confident, hyper-intelligent athlete with fighting skills, thanks in great part to Trini's Uncle Howard. Jason and later Tommy help graduate Billy to the red belt level in karate.