Suggestions by @SpiderSonicPrime

Richard McGonagle

as Apocalypse in The X-Men 3 (New Animated Film)

Richard Doyle

as Robert Kelly in The X-Men 3 (New Animated Film)

James Arnold Taylor

as Professor X in The X-Men 3 (New Animated Film)

Keith Ferguson

as Professor X in The X-Men 3 (New Animated Film)

Tara Strong

as Magik in The X-Men 3 (New Animated Film)

Liam O'Brien

as Angel/Archangel in The X-Men 3 (New Animated Film)

Erica Lindbeck

as Psylocke in The X-Men 3 (New Animated Film)

Chris Cox

as Colossus in The X-Men 3 (New Animated Film)

Liam O'Brien

as Nightcrawler in The X-Men 3 (New Animated Film)

Fred Tatasciore

as Beast in The X-Men 3 (New Animated Film)

Danielle Judovits

as Shadowcat in The X-Men 3 (New Animated Film)

Yuri Lowenthal

as Iceman in The X-Men 3 (New Animated Film)

James Arnold Taylor

as Iceman in The X-Men 3 (New Animated Film)

Phil LaMarr

as Gambit in The X-Men 3 (New Animated Film)

Rick Pasqualone

as Gambit in The X-Men 3 (New Animated Film)

Melissa Disney

as Rogue in The X-Men 3 (New Animated Film)

Kieren Van Den Blink

as Rogue in The X-Men 3 (New Animated Film)

Mara Junot

as Storm in The X-Men 3 (New Animated Film)

Steve Blum

as Wolverine in The X-Men 3 (New Animated Film)

Jennifer Hale

as Phoenix in The X-Men 3 (New Animated Film)