Animated Atheists

Mirabel Madrigal (Encanto)

Characters who ARE confirmed as Atheists:

Brian Griffin, Cleveland Brown, Cleveland Brown Jr. Hayley Smith, Roger Smith, Rick Sanchez, Professor Frink, Professor Hubert J. Farnsworth, Wendy Testaburger, Daria Morgendorffer, Dr. Light, King Dedede, Solid Snake, Donkey Kong and Waluigi.

Brian Griffin (Family Guy)

Cleveland Brown (Family Guy)

Cleveland Brown Jr. (Family Guy/The Cleveland Show)

Hayley Smith (American Dad)

Roger Smith (American Dad)

Rick Sanchez (Rick and Morty)

Professor Frink (The Simpsons)

Professor Hubert J. Farnsworth (Futurama)

Wendy Testaburger (South Park)

Daria Morgendorffer (Beavis and Butt-Head/Daria)

Dr. Light (Megaman)

King Dedede (Kirby)

Solid Snake (Metal Gear Solid)

Donkey Kong (Super Mario/Donkey Kong)

And

And Waluigi (Super Mario)

Characters who MAYBE are Atheists:

LDShadowLady and Notch.

LDShadowLady (Minecraft: Story Mode)

And

And Notch (Minecraft)

Characters who are Atheists in Kid Shows:

Squidward Tentacles, Eustace Bagge, Talking Pierre, Wile. E. Coyote, Grunkle Stan, Discord and Mr. Robinson.

Squidward Tentacles (SpongeBob SquarePants)

Eustace Bagge (Courage the Cowardly Dog)

Talking Pierre (Talking Friends)

Wile E. Coyote (Looney Tunes)

Grunkle Stan (Gravity Falls)

Discord (My Little Pony: Friendship is Magic)

And

Luca (Luca)

And Mr. Robinson (The Amazing World of Gumball)

Nick Wilde (Zootopia)

Abraham Lincoln (Various Universes)