Suggestions by @harrybray
9,876 suggestions
Brendan Fraser
as Robotman (earth 19)/ Kal El (aborted earth) in Crisis on infinite earths: the animated movie (my cast)

John DiMaggio
as Ultraman (earth 3) in Crisis on infinite earths: the animated movie (my cast)

LaMonica Garrett
as CW earth monitor in Crisis on infinite earths: the animated movie (my cast)

Matt Bomer
as *Negative Man (Earth 19) in Crisis on infinite earths: the animated movie (my cast)

Grant Gustin
as Barry Allen *earth 1-20 and CW prime earth in Crisis on infinite earths: the animated movie (my cast)

Jensen Ackles
as Bruce Wayne/Batman *earth 1.20 in Crisis on infinite earths: the animated movie (my cast)

Darren Criss
as Clark Kent/Kal El *earth 1-20* in Crisis on infinite earths: the animated movie (my cast)

Charles Parnell
as Voice of Nar Novu in Crisis on infinite earths: the animated movie (my cast)
Jack Larson
as Barnacle Boy in SpongeBob SquarePants (Early 1990's)

Stephanie Corneliussen
as Valentina Vostok (DC) in Superheroes and Supervillains

Mariana Klaveno
as Lara (hologram) in Superman and Lois season 4.
Tyler Hoechlin
as Director in Superman and Lois season 4.

David Harewood
as Director in Superman and Lois season 4.

Amy Jo Johnson
as Director in Superman and Lois season 4.

Allan Arkush
as Director in Superman and Lois season 4.

David Nutter
as Director in Superman and Lois season 4.

Eric Roberts
as Ross Webster in Superman and Lois season 4.

Aaron Sorkin
as Writer in Truman

Aaron Sorkin
as Director in Truman
Steven Spielberg
as Producer in Truman