Suggestions by @adams

Jack Black

as Beast in The X-Men (MCU)

Zac Efron

as Wolverine in The X-Men (MCU)

Julianne Hough

as Dazzler in The X-Men (MCU)

Evan Rachel Wood

as Jean Grey in The X-Men (MCU)

Richard Madden

as Cyclops in The X-Men (MCU)

Dylan O'Brien

as Nightwing in DC's teamup

James Marsden

as Green lantern in DC's teamup

John Krasinski

as Superman in DC's teamup

Robert Pattinson

as Batman in DC's teamup

Colin Ford

as Tim Drake in The Batman

Curran Walters

as Jason Todd in The Batman

Aidan Gallagher

as Damian Wayne in The Batman

Brenton Thwaites

as Dick Grayson in The Batman

Jensen Ackles

as Bruce Wayne in The Batman

Paris Berelc

as Bonnie Rockwaller in Kim Possible (Alternate Fancast)

Jenna Ortega

as Athena in Kim Possible (Alternate Fancast)

Sophia Lillis

as Kim Possible in Kim Possible (Alternate Fancast)

Sadie Sink

as Kim Possible in Kim Possible (Alternate Fancast)

Mackenzie Foy

as Penny in Bolt (Live Action)

Richard Madden

as Cyclops in Avengers : Rage of Ultron