Masaaki Yuasa (湯浅 政明 Yuasa Masaaki?) is an anime television and film director, screenwriter, storyboard artist and animator known for his wild free form style. He was born on March 16, 1965 in Fukuoka, Japan. His most recent work as of September 2014 is the animated adaptation of Taiyo Matsumoto's manga Ping Pong. In June 2014 he announced that he, along with his close affiliate Eunyoung Choi, had founded a new animation studio by the name of Science Saru.
For a presentation in February 2009 on the eve of that year's Image par image animation festival in Val-d'Oise, France, for which he also illustrated the poster, Yuasa selected and commented on some examples of animated works that have been an influence on his. These were:
- a film by Tex Avery
- another by Ladislas Starevich
- extracts from Yellow Submarine
- Fantastic Planet
- The Fox and the Hound
- The Wrong Trousers
- a Batman pilot from Lightbox Animation
- the 1971 Tōei Dōga film Ali Baba to Yonjuppiki no Tōzoku
- a Masaaki Ōsumi-directed episode of the first Lupin III television series
- part 4 of The Hakkenden: Shinshō
- the Tiger Mask and Mrs. Pepper Pot opening and ending titles respectively.
- Vampiyan Kids pilot film (1999) – Director, storyboard, layout
- Mind Game (2004) – Director, screenplay, character designer
- Kemonozume (2006) – Series director and composition; episode screenplays, storyboards, direction and key animation
- Genius Party (2008) – Director on "Happy Machine" segment
- Kaiba (2008) – Series director and creator; episode screenplays, storyboards and direction
- The Tatami Galaxy (2010) – Series director and screenplay; episode storyboards and direction
- Kick-Heart (2013) – Director (Introduced "Kickstarter" crowd source funding for anime.)
- Ping Pong (2014) – Director
- Adventure Time (2014) – Director, writer and storyboard artist for the season 6 episode "Food Chain"
- Space Dandy (2014) – Director, writer, animation supervisor and storyboard artist for the episode "Slow and Steady Wins the Race, Baby"
- The Night Is Brief, Go Forth Young Woman (2017) - Director
- Chibi Maruko-chan (1990) – OP and ED animation (first season)
- Crayon Shin-chan (1992) – OP animation (fifth and sixth seasons) and ED animation (third and fourth seasons), animation director on episodes 48, 126, 260, 291 and specials
- The Hakkenden (1994) – Animation director on episode 10, "Hamaji's Resurrection" (浜路再臨)
- Noiseman Sound Insect (1997) – Animation direction, character design, layout
- My Neighbours the Yamadas (1999) – Key animation
- Cat Soup (2001) – Animation producer, screenplay, planning
- Samurai Champloo (2004) – Key animation on episode 9
- Welcome to the Space Show – Opening titles for the Space Show (in story)
- Wakfu (2010) – Character design for "Noximilien" special episode
- "Masaaki Yuasa and Eunyoung Choi found Science Saru, a new japanese studio". sciencesaru.com. Hummingbird. Retrieved 5 January 2015.
- Tsuka (1 November 2008). "[Event] Yuasa en france : infos++" (in French). Catsuka. Retrieved 28 August 2010.