Suggestions by @willmoran

Harry Eden

as Young Peter Pettigrew in Harry Potter: A TV Series (2009)

Rupert Simonian

as Malcolm in Harry Potter: A TV Series (2009)

Joe Tremain

as Dennis in Harry Potter: A TV Series (2009)

Barney Clark

as Mark Evans in Harry Potter: A TV Series (2009)

Theo Stevenson

as Tom Riddle (11 years) in Harry Potter: A TV Series (2009)

Daniel Huttlestone

as Louis Weasley in Harry Potter: A TV Series (2009)

Daniel Huttlestone

as Dominique Weasley in Harry Potter: A TV Series (2009)

John Bell

as Anthony Goldstein in Harry Potter: A TV Series (2009)

Joel Dawson

as Lysander Lovegood-Scamander in Harry Potter: A TV Series (2009)

Nathan Mack

as Lorcan Lovegood in Harry Potter: A TV Series (2009)

John Bell

as Dominique Weasley in Harry Potter: A TV Series (2009)

Henry Lloyd-Hughes

as Marcus Flint in Harry Potter: A TV Series (2009)

Hugh Jackman

as James Potter in Harry Potter: A TV Series (2009)

Russell Crowe

as Yaxley in Harry Potter: A TV Series (2009)

Kia Pegg

as Susan Bones in Harry Potter: A TV Series (2009)

Emily Mortimer

as Amelia Bones in Harry Potter: A TV Series (2009)

Idris Elba

as Zabini Sr. in Harry Potter: A TV Series (2009)

Keanu Reeves

as Nott Sr. in Harry Potter: A TV Series (2009)

Lauren Drummond

as Lily Moon in Harry Potter: A TV Series (2009)

Freddie Highmore

as Ernie MacMillan in Harry Potter: A TV Series (2009)