Suggestions by @buffalofox

Freddie Highmore

as Charles R. Webb in Nichols

Score: +1

Clark Duke

as Roger Ebert in Nichols

Score: +1

Dylan Minnette

as Art Garfunkel in Nichols

Score: -1

Thomas Brodie-Sangster

as Paul Simon in Nichols

Score: 0

Luke Perry

as Lawrence Turman in Nichols

Score: +1

Miles Teller

as Gene Hackman in Nichols

Score: 0

Gwilym Lee

as Richard Burton in Nichols

Score: +1

Liv Tyler

as Elizabeth Taylor in Nichols

Score: 0

Winona Ryder

as Natalie Wood in Nichols

Score: +1

Rachel Weisz

as Ava Gardner in Nichols

Score: +1

Michelle Pfeiffer

as Lauren Bacall in Nichols

Score: +1

Vince Vaughn

as Murray Hamilton in Nichols

Score: +1

Renée Zellweger

as Elizabeth Wilson in Nichols

Score: +3

Jude Law

as William Daniels in Nichols

Score: +1

Elle Fanning

as Candice Bergen in Nichols

Score: +1

Luke Benward

as Robert Redford in Nichols

Score: -1

Lucas Till

as Robert Redford in Nichols

Score: +1

Jim Parsons

as Buck Henry in Nichols

Score: +1

Tom Hollander

as Calder Willingham in Nichols

Score: +1

Chloë Grace Moretz

as Katharine Ross in Nichols

Score: 0