Uko Tachibana (橘 U子, Tachibana Yūko, March 15, 1973) is a Japanese voice actress from Tokyo. Formerly affiliated with Gekidan 21 Seiki Fox, she is currently affiliated with Kenyu Office. Her old stage name is Mari Koshi (合志 真理, Kōshi Mari).
SPY x FAMILY
Series • 2022
Monster
Series • 2004
Aoashi
Chainsaw Man
Ascendance of a Bookworm
Series • 2019
86 EIGHTY-SIX
Series • 2021
Redo of Healer
Komi Can't Communicate
Narenare -Cheer for You!-
Series • 2024
BASTARD‼ -Heavy Metal, Dark Fantasy-
Big Windup!
Series • 2007
PLUTO
Series • 2023
The Café Terrace and Its Goddesses
The Way of the Househusband
Police in a Pod
Kaina of the Great Snow Sea
Madam is a Magical Girl
Series • 2005
IGPX: Immortal Grand Prix
I My Me! Strawberry Eggs
Series • 2001
One Piece: The Desert Princess and the Pirates: Adventure in Alabasta
Movie • 2007
Beyblade the Movie: Fierce Battle
Movie • 2002
Hal
Movie • 2013
Chainsaw Man - The Compilation Part 1
Movie • 2025
Genbanojō
Movie • 2017