Suggestions by @remkosel

Josh Hutcherson

as Alexander Summers in X-Men: Mutant Genesis

Score: 0

Brandon Flynn

as Bobby Drake in X-Men: Mutant Genesis

Score: +1

Emma Dumont

as Lorna Dane in X-Men: Mutant Genesis

Score: +1

Patrick Stewart

as Charles Xavier in X-Men: Mutant Genesis

Score: +1

Michael Douglas

as Hank Pym in X-Men: Mutant Genesis

Score: +1

Chris Hemsworth

as Thor Odinson in X-Men: Mutant Genesis

Score: +1

Jeremy Renner

as Clint Barton in X-Men: Mutant Genesis

Score: +1

Aaron Taylor-Johnson

as Pietro Maximoff in X-Men: Mutant Genesis

Score: +1

Paul Bettany

as Vision in X-Men: Mutant Genesis

Score: +1

Elizabeth Olsen

as Wanda Maximoff in X-Men: Mutant Genesis

Score: +1

Scarlett Johansson

as Natasha Romanoff in X-Men: Mutant Genesis

Score: +1

Mark Ruffalo

as Bruce Banner in X-Men: Mutant Genesis

Score: +1

Robert Downey Jr.

as Tony Stark in X-Men: Mutant Genesis

Score: +1

James Spader

as Ultron in X-Men: Mutant Genesis

Score: +1

Hayley Atwell

as Peggy Carter in X-Men: Mutant Genesis

Score: +1

John Slattery

as Howard Stark in X-Men: Mutant Genesis

Score: +1

Chris Evans

as Steve Rogers in X-Men: Mutant Genesis

Score: +1

Neal McDonough

as Dum Dum Dugan in X-Men: Mutant Genesis

Score: +1

Derek Luke

as Gabe Jones in X-Men: Mutant Genesis

Score: +1

Kenneth Choi

as Jim Morita in X-Men: Mutant Genesis

Score: +1