The father of Seabook Arno and Reese Arno, he abandoned his career as a metals researcher rather than see his work used for military purposes, and became a welder at Frontier IV's spaceport. When the colony is attacked by the Crossbone Vanguard, Leslie helps Seabook and friends escape in a space boat, but he himself is left behind at Frontier IV.
He later suffers a head injury after helping Seabook escape from the Crossbone Vanguard, and dies from his injuries.
<gallery"> Leslie_Arno.gif Img 1218778 37996968 1.jpeg Img 1218778 37996968 0.jpeg img_1218778_37997393_0.jpeg img_1218778_37997393_1.jpeg Leslie Arno.png </gallery>
Gundam F91 characters
|Earth Federation||Seabook Arno | Cecily Fairchild | Leahlee Edaberry | Birgit Pirjo | Monica Arno | Gruce Erras | Nanto Roos | Manuela Panopa | Cain Sohn | Jessica N'guro | Manu Sofu | Dina Jyok | Kaynee Hahhah | Bardo | Cosmo Eigesse | Elm | Minmi Editoh|
|Crossbone Vanguard||Iron Mask | Cecily Fairchild | Meitzer Ronah | Zabine Chareux | Dorel Ronah | Annamarie Bourget | Gillet Krueger | Theo Fairchild|
|Civilians||Reese Arno | Dwight Camry | George Azuma | Sam Ehrug | Dorothy Moore | Leslie Arno | Nadia Ronah | Bertuo Rodriquez | Migen Maujin | Leah Mariba | Kochun Hein | Arthur Jung | Roy Jung | Robar | Chris|