The Red Guy has a red yarn head and white eyes with maroon eyelids that rest on the top of his head. He has no visible mouth or nose. Unlike the other protagonists, he is a human in a full bodysuit, not controlled by puppetry. He is the largest of the main three puppets. Although his mouth isn't visible by first sight, if you move the string out of the way a mouth can be seen. The mouth seems to have no lips, only teeth and gums The Red Guy is the most unenthusiastic out of the friends. In every video he has acted bored, sarcastic and uninterested, and always speaks in a rather low, flat and monotone voice. He seems to be the most responsible caretaker of the other two, acting wary about unfamiliar situations, instead of playing along like the others. He shows little respect for any of the teachers, even going so far as to tell Colin to shut up. Although he is normally monotone and sarcastic, Red Guy seems to still care about his two best friends. He has shown this on several occasions, including when he stated that he liked looking at Duck Guy, and when he stood up for Yellow Guy when Duck Guy yells at him for breaking Colin's gift.

Yellow Guy is shown with yellow skin and a round, orange nose with short, blue spiky hair. He has a small, almost childlike body, with thin limbs and a wrinkly neck. He wears dark purplish blue overalls with a "D" stitched over the front pocket, and no shoes. He has a childlike personality and he enjoys the sight of nature. He is also very sensitive, which is shown when he becomes incredibly upset when Duck murdered a butterfly. He doesn't seem to be intelligent when compared to his two friends. Instead, he is someone goofy, clumsy, stubborn, and gaunt, as he called Shrignold a "little baby pigeon", called his father a computer, and cut his finger with scissors in Death to see if smoke would emerge like Duck did. He also sometimes questions the obvious and doesn't know the obvious.

He is an anthropomorphic dark green bird resembling a mallard duck with a wide yellow beak and yellow legs with webbed feet, wearing a brown tweed blazer with a red handkerchief in the left breast pocket. From the second episode and on, he wears brown corduroy shorts. He seems to be the second most intelligent out of the trio, capable of forming complex ideas about the concept of time. However, his intelligence seems to vary between episodes, for example, he mistakes a butterfly for a "pesky bee" in Episode 3. He is also very talkative, arguably the most talkative among the three friends. He appears to enjoy eating (raw) chicken and eggs, even though he is a duck. He also appears to be interested in technology, as seen in the second and fourth episode and also in fashion as he is rather neatly dressed and by his interest in the digital style in Episode 4.