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Tom Daley as Self Usain Bolt as Self Katie Taylor as Self - Olympian Majlinda Kelmendi as Self - Olympian Zara Tindall as Self Heena Sidhu as Self - Olympian Michael Phelps as Self Oscar Pistorius as Self Caroline Buchanan as Self - Olympian Qiu Bo as Self - Olympian Chad Le Clos as Self - Olympian John Orozco as Self - Olympian David Rudisha as Self - Olympian Natasha Jonas as Self Laura Kenny as Self - Olympian