People this is an extract of a faq about DoA1 Sega Saturn version: the section is the one dedicated to Raidou, where the author included in the moveset list even the original owners of each Raidou's move (I eliminated the imputs and the strike levels for making more clear the text).
Country: Japan
Birth: August 13 (48 years old)
Bloodtype: AB
Size: 181cm 78kg B96 W102 H99
Style: modified MugenTenshin-ryu Karate
Occupation: none
Likes: Boar Nabe
Hobbies: Secret arts
Voice: Yata Koji
Raido's moves are like that of Dural in Virtua Fighter, a mix of moves
from the game's characters. Strike levels and damages are taken from
the originating character.
Characteristic Strikes
Body Blow bayman
Stomach Crush bayman
Double Hammer tina
ChisenTou hayabusa
Smash bayman
Amatsuki hayabusa
Kick Upper jann-lee
Double Kick jann-lee
Kamitsuki hayabusa
HagenShuu hayabusa
RyuueiTou hayabusa
GetsurinKyaku hayabusa
RaishinGeki hayabusa
UgyuuHaitou gen-fu
Swing Double Hammer bayman
Reverse Double Hammer bayman
Zansui gen-fu
YoushiZanKen gen-fu
Fighting Kick tina
Ti Kau Tron zack
Knee Spin Kick zack
SokutouGeki hayabusa
HamayariGeri hayabusa
Leg Spike bayman
Heel Hammer bayman
High Fist Thrust kasumi?
Fist Thrust, High Kick kasumi?
Strike Series kasumi?
Rising Strike Series kasumi?
ZanTsukiSai kasumi?
Triple Strike kasumi?
Pounces, Pursuits, Misc. Moves
NarakuTsuki hayabusa
Stomping bayman
Throws
TensouGoraiSho
JujiKarami hayabusa
Neck throw hayabusa
Shoulder carry jann-lee
ShihoNage hayabusa
Neck Hanging bayman
KoukaiSanouSa gen-fu
Windmill Backbreaker bayman
Zanshusen (oppcr) hayabusa
Japanese Ocean Bomb (oppcr) tina
Reverse Throw (behind) hayabusa
RakuRyuushou (behind) hayabusa
Offensive Holds
Headlock jann-lee
Bull Docking Headlock jann-lee
Tackle tina
Giant Swing tina
Choke Slam bayman
Genei hayabusa
RekkuuJinraiSatsu
UraIkazuchiNagi (behind) hayabusa
Defensive Holds
H h|mP
H h|mK
d,H lP
d,H lK
ShuugekiKakutou hayabusa
As you can see, while for obvious reasons Kasumi and overall Hayabusa are the main source for Raidou, actually he is far from appearing as a replica of the ninjas like the boss of DoA5, actually getting instead moves from all the roster of the game (more than half come from not ninja) with the only exception of Leifang. And of course his moveset was increased in DoA1 for PSX, not sure if also in DoA++, and DoA Dimensions).
By the way this doesn't mean that Raidou couldn't get completely unique moves owned only by himself.