|This article is about a/an ranger in Power Rangers Lost Galaxy.|
|First Appearance:||Quasar Quest (1)|
|Last Appearance:||Forever Red|
|Number of Episode|
|Actor:|| Danny Slavin|
Christopher Glenn (ADR for Trakeena's Revenge)
Eric Artell (Super Legends)
Leo, along with is brother, Mike, lived a comfortable life on earth as citizens of Angel Grove. During his childhood, he "hung out" and played sports, often pondering about what laid beyond the reaches of earth in space.  Leo was among the thousands who were present during Astronema's invasion of earth. He recounted briefly to the Red Space Ranger, Andros, that he witnessed the other Space Rangers (Zhane, Cassie, Ashley and T.J.) morphing in front of everyone and taking on the United Alliance of Evil in their conquest of the planet.
As a stowaway aboard the Terra Venture, Leo dared to follow his older brother, Mike, to find a new world. Against his brother's wishes, he followed him, Maya, and Kendrix through the portal to Mirinoi, wanting to help save Maya's home. He largely witnessed the discovery of the Quasar Sabers by accident. Mike originally drew the Red Quasar Saber, but passed it on to Leo before falling to his apparent death at the bottom of a crevice. This allowed Leo to morph into the Red Galaxy Ranger.
Throughout the series Leo presented great bravery and courage as he faced Scorpius and eventually defeated him single handedly. Leo can be very stubborn and hot-headed sometimes. He became close friends with Damon, Maya, Kendrix and Kai, the group helped each other with their personal strengths and weaknesses, growing stronger as time passed by. Kendrix provided morale and support during Mike's absence and in kind, Leo did the same for her. Maya taught Leo how to communicate with his Galactabeast by using his heart to understand its "feelings". The lesson proved helpful when he faced Motor Mantis in a race to save Kendrix and Maya, who'd been transformed into trophies by the monster. Kai and Leo occasionally clashed with each other over his initial status as a stowaway, lack of responsibility and forgetfulness, but the two became friends regardless. He and Damon share an easier friendship with each other, as the two share similar qualities as easygoing and laid back young men.
In a final showdown with Furio, Leo was nearly killed when the general self-destructed inside the cave believed to contain the Lights of Orion. In the aftermath of the explosion, he was saved by the Magna Defender (who appeared on Terra Venture to seek out the Lights and destroy Scorpius at the time). He believed that there was still some good left in him, despite the Defender's questionable morals during battle. Leo tried to show the Magna Defender the error of his ways and began to believe that something was inside of Magna Defender that was holding him back from the terrible deeds that could have happened. This something turned out to be Leo's long lost brother Mike, who was thought to have died on Mirinoi when he fell into the crevice created by Furio.
At the bottom of the crevice the Magna Defender was also a prisoner (defeated by Treacheron 3,000 years prior), when Mike fell in he used Mike's life force to escape. After the Magna Defender saw the error of his ways, he sacrificed himself to save Terra Venture he released Mike and the two brothers were reunited once again. However it was not long before Leo began to have second thoughts of his possession of the Red Quasar Saber, believing Mike to be the rightful owner. When he confronted Mike, Mike explained that he always believed in Leo, he believed that it was his brother's destiny to become the Red Galaxy Ranger.
In the team up episode with the Space Power Rangers, the Psycho Rangers had returned and were now under the command of Trakeena to attack the Galaxy Rangers. Psycho Red went after Leo and only with the intervention of Andros, the Red Space Ranger, did Leo evade capture like the others. Leo, together with all ten rangers defeat the Psycho Rangers. Psycho Pink's survival, however, resulted in the death of Kendrix, who died destroying the Savage Sword to save Cassie's life. Leo was saddened by this turn of events, but when the powers of the Pink Ranger were passed down to Karone, he and the others welcomed her into the team and befriended her despite her past as Astronema.
Throughout the series, Leo used weapons such as the Red Transdagger, Lion Galactabeast, Red Astro Cycle, Armor Keys (which he used to become the Red Armored Ranger), the Lights of Orion and Red Capsular Cycle (which he gained through understanding his Galactabeast), and the Lights of Orion.
In the finale, Leo single-handedly destroyed Trakeena in her green insectoid form, when he blasted her at point-point range. The action resulted in sacrificing his Battlizer and nearly destroying himself in the process. Leo and the other Rangers survived the crash landing of Terra Venture's ruined central dome when the Galaxy Megazord arrived in time to save them. Once it's revealed that the planet they've landed on was Mirinoi, the five Rangers return the saber's to their resting place in the stone alter. The action revived, not only the planet and it's original inhabitants, but Kendrix as well.
When Triskull and his ghouls invaded Mirinoi, Leo took up the mantle of Red Ranger once more, and followed him to Earth. Once on the planet, he and the Galaxy Rangers helped the Rescue Rangers fight both Triskull and Trakeena, who'd managed to survive his attack from the Battlizer.
During the Power Rangers Wild Force episode Forever Red, Leo was recruited by Andros to journey to the moon with nine other Red Rangers to destroy the last remnants of the Machine Empire and Serpentera. He arrived to the planet with Aurico in time to rescue Cole from Venjix and aided T.J. primarily during the battle against the machine generals. Currently, Leo is living in Mirinoi, either retired and watching over the Quasar Sabers, or active as a Ranger, protecting Mirinoi from threats.
Danny Slavin has announced that he will reprise his role as Leo in Power Rangers Super Megaforce. His role as a Legendary Ranger is yet to be seen.
- Quasar Saber
- Transdagger - Magna Talon
- Quasar Launcher
- Jet Jammer
- Red Astro Cycle/Red Capsular Cycle
- Galactic Key
- Originally, Leo and Kendrix were to be romantically involved, but the subplot was subsequently scrapped when Valerie Vernon was diagnosed with leukemia, although the idea was hinted at, during points in the show.
- The name Leo means "lion" in Latin, which ties in with his totem Galactabeast, a Lion.
- Leo had changed clothes throughout the season, in the first half of the season he wore blue jeans, a red tank-top shirt and a black leather jacket, in the second half he wore Khakis, a red tank-top shirt, and a light blue button-up shirt.
- Though Leo did not originally pull the Red Quasar Saber from the stone, evidence that he was a chosen Ranger for the saber all along was the fact that he was able to pull it from the stone himself in Trakeena's Revenge and Forever Red.
- Had Forever Red been allowed to be shot as a feature length film, Leo would've been one of the two Red Rangers to die (other being Aurico), because he shared a lion-themed Zord, just like then-present Red Ranger Cole, according to Amit Bhaumik.
- Danny Slavin is five years older than his on-screen older brother Russell Lawrence.