A

• [+] Animals‎ (2 C, 1 P)

H

• [+] Humans‎ (1 C, 18 P)

I

• [+] Imaginary Friends‎ (6 C, 120 P)

M

• [×] Males‎ (54 P)

O

• [+] One-Time Characters‎ (1 C, 24 P)

R

• [+] Recurring characters‎ (1 C, 9 P)

W

• [×] Workers‎ (12 P)

B

• Berry
• Billy the Squid
• Bloo
• Bloppy Pants
• Boomer
• Brain Sucking-Aliens From the Moon (Character)

C

• Crackers
• Characters
• Cheese
• Chris
• Clumsy
• Coco

D

• Duchess

E

• Eduardo
• EuroTrish
• Extremeasaur

F

• Fluffer Nutter
• Foul Larry
• Frankie Foster
• Frit and Frat

G

• Gary The Cat

G cont.

• George Mucus
• Goo

H

• Mr. Herriman
• World

I

• Imaginary Man
• Ivan

J

• Jackie Khones
• Jimmy Two-Shoes

K

• Ken
• Kip Snip
• Kreplach McBonkers

L

• Lemon Lenny
• Louise

M

• Mac
• Mac & Terrence's Mother
• Mac's Family
• Mac's Grandmother

N

• Neighbor Pains
• Nemesis
• No Nose Ned
• Noteworth Bookingham

O

• Old Man Rivers
• Orlando Bloo

P

• Peas

R

• Raffish Ralph
• Red
• Rod Tango

S

• Secondary characters in Foster's Home for Imaginary Friends
• Sharkhead and Purple
• Stevie
• Stinky-the-bad-at-video-games-guy

T

• Tabby
• Terrence
• The Incredible Mr. Droop
• The Millionaires Family

U

• Uncle Pockets

W

• Wally
• Wilt

Y

• Yeti
• Yogi Boo Boo