Rial's first voice-over role was some
walla in the 1999 dub of
Martian Successor Nadesico. In an interview with Otaku News, Rial said she had to talk for two minutes straight as folks in a crowd telling the Jovians to go home. In 2004, Rial started voice-over work with the anime dubbing company Funimation (currently known as
Crunchyroll LLC) in the Dallas/Ft. Worth area. During that year, she voiced
Amy in the long-running detective anime series
Case Closed, and
Lyra (and Dante) in the fantasy drama series
Fullmetal Alchemist. Both of these shows were featured on Cartoon Network. She also voiced co-lead character Lumiere in
Kiddy Grade. Meanwhile, with ADV, she voiced
Nyamo-sensei in the school comedy
Azumanga Daioh. She had also taken over some character roles as Momiji in
Blue Seed and Maya in
Neon Genesis Evangelion. Rial said that it was very difficult to try to sound like the previous voice actors, especially Maya's low voice, so she tried her own approach. She also got to voice Pen-Pen the penguin in
Evangelion. In 2005, she voiced the serious lead character Jo in a team of mercenary girls in the cyberpunk science fiction series
Burst Angel. Rial continued to land leading roles in anime shows. In 2006, she voiced the title character in
Nanaka 6/17, about a 17-year-old girl who, through an accident, has amnesia and regresses to her 6-year-old self. In
Speed Grapher she voiced female protagonist
Kagura Tennōzu, and in the ADV Films remake of
Macross, she voiced
Misa Hayase. She went on to replace
Tiffany Vollmer as the voice of
Bulma Briefs in the
Dragon Ball franchise in 2009 beginning with
Dragon Ball Z Kai and other media from that point on. Rial voiced more leads in 2012, with
Shiro in
Deadman Wonderland which also broadcast on
Adult Swim, and Stocking in the first season of the raunchy comedy
Panty & Stocking with Garterbelt. In 2013, she voiced the heroine character Haruko Amaya in the harem comedy
Maken-ki! and Iori Nagase in the school anime series
Kokoro Connect. With regard to her lead role of Michiko Malandro in
Michiko & Hatchin, which was released on DVD in 2013 and was broadcast on
Adult Swim in 2015, Rial said that out of the 300 or so characters she had voiced, only two of them were Hispanic, and she liked that her character wasn't a stereotype. At later anime conventions, Rial has mentioned that ADR script writing has kept her quite occupied, especially with
SimulDubs, which are shows that are locally dubbed soon after the original broadcast. She has also written columns for
Newtypes USA edition. In January 2018, Rial has announced that she is taking time off of script adaptation. ==Personal life==