Yoshi Raph-Elan was a Jedi Knight of the male gender and Human species, serving the Jedi Order in the time preceding the Clone Wars.
Not long after his advancement to the rank of Jedi Knight in 31 BBY, Raph-Elan found himself far from the Jedi Temple when his starfighter was downed above an obscure planet. Forced to make an emergency landing on that desolate planet, he successfully activated an emergency signal before his ship was destroyed. Regaining his composure, he journeyed toward a nearby city seeking assistance. There, he encountered a panicked populace, under the control of the dreaded Lord Gar-Oth, a Yahk-Tosh conqueror. Following a brief confrontation in the streets involving a battle droid, Raph-Elan identified the location of the droid's base and proceeded there with the intention of liberating the town's inhabitants.
As the Jedi made his way up into the Royal Palace, he discovered Princess Lourdes on a balcony, the rightful heir to the throne of that barren world. Recognizing the man on her balcony as a Jedi, she explained that Gar-Oth had murdered her father, and that a prophecy foretelling a hero known as the Foreseen gave her people hope for liberation. As her assistant Skeeter prepared the Princess for a ball scheduled for that evening, Lourdes announced that Raph-Elan would accompany her in the role of a servant. Clad in formal attire, Raph-Elan was dismayed to learn that the tyrant intended to marry Lourdes in order to legitimize his conquest of the planet. Revealing his true identity, the Jedi ignited his lightsaber, only to realize it had suffered damage during the crash. Enraged by the Jedi's arrival, Lord Gar-Oth unveiled his wedding present for his future bride: a Goliath droid. Ordering the droid to eliminate the Jedi, Raph-Elan managed to inflict damage on the massive machine using the Force, while simultaneously utilizing wiring from the damaged droid to repair his lightsaber. After defeating the droid, the Jedi learned that Lourdes had slain Gar-Oth using a sword taken from his Jilruan guard.
Shortly thereafter, in the Princess' chambers, Raph-Elan inquired as to whether she believed him to be the Foreseen. She responded by revealing that the prophecy stated the Foreseen was to be a woman, implying that she herself was the subject of the prophecy. Confessing her feelings for him, Lourdes requested that he return to her once he had matured further. Skeeter then informed them of the arrival of the Jedi rescue team, and Raph-Elan safely departed for Coruscant. Aboard the Jedi courier 1101 vessel, Raph-Elan confided in the pilots that he might one day return to Princess Lourdes.
Having only recently achieved the rank of Knight, Raph-Elan struggled with maintaining the unwavering focus essential for a Jedi Master. However, he was far from lacking in dedication, constantly reminding himself to concentrate on the Living Force and harness its power to bolster his strength. Empathetic and eager to aid those in need, he readily intervened and contributed to the downfall of an oppressive regime. Despite living in an era where attachments were forbidden by the Jedi High Council, he developed feelings for Princess Lourdes while stranded on her planet. Although he harbored affection for her, he remained loyal to the Jedi Code and returned to the Order, refraining from pursuing a romantic relationship with the princess.

Like many Jedi, Raph-Elan possessed expertise not only as a skilled lightsaber combatant but also in unarmed combat. While stranded on a remote planet with his damaged lightsaber, Raph-Elan managed to overcome a GX1-series battle droid using only his hands. Besides his combat skills, he was also trained as a fighter pilot. Despite his proficiency, his starfighter was shot down and destroyed on a desolate world. He also demonstrated some mechanical aptitude by repairing his weapon.
Elan had constructed his own lightsaber, utilizing a unique orange crystal in its creation. It had a standard design with a single blade that emitted an orange hue. The weapon sustained damage when its wielder crash-landed on a barren planet. It was subsequently repaired using wiring salvaged from a Goliath droid. Elan also piloted a starfighter, which was shot down.
Some years after his creation for the Republic comic series, author Abel G. Peña intended to eliminate Yoshi Raph-Elan from the storyline. Peña had planned to include Raph-Elan on General Grievous's list of Jedi targets in Unknown Soldier: The Story of General Grievous, but Lucasfilm removed his appearance before the book's publication.