In a business that burns through people quickly, Ryuji Saikachi is a long-distance runner known to audiences from a long list of titles rather than from one. Animation keeps coming back on the credit list. Careers that pass the 51-year mark are a small club. 'Castle in the Sky' is the most-watched work of the career, as Old Engineer. Among the rest of the work, 'Tokyo Godfathers' stands out. The oldest credits belong to a different era of the industry.