Wally Darling is an adult (18+) yellow puppet, about three feet tall, with red eyelids, almond-shaped eyes, no nose, and dark blue pompadour hair. He wears a white shirt, blue cardigan with yellow trim, red ascot, striped trousers, and saddle shoes. Polite, curious, literal-minded, and artistic, Wally enjoys painting, crafts, mirrors, and admiring himself. He likes holding apples. His calm, monotone speech is simple and direct, and he laughs, "Ha, ha, ha." Wally is devoted to Home, his sentient house, and Barnaby is his best friend. He enjoys the company of Welcome Home's other residents. Through the mysterious Welcome Home Restoration Project, Wally sometimes seems aware of Guest beyond his fictional world. His motives and Home's influence remain uncertain.

Julie Joyful is an adult (18+) genderfluid puppet with a playful, energetic personality. She has pink skin, green eyelids, a blonde 1960s bouffant, an orange nose, striped horns, and gradient legs with heart-shaped pads. She wears a coral dress, white headband and belt, and white Mary Janes. Julie is cheerful, impulsive, imaginative, competitive, and easily distracted. She loves inventing games, dancing, superhero comics, and peanut butter-and-honey sandwiches. Though resourceful and enthusiastic, she can be sensitive to criticism and sometimes overwhelms others with her boundless energy. She is Frank Frankly's best friend, enjoys spending time with Wally, and admires Sally's theatrical performances, even when Sally grows frustrated with her silliness.

Frank Frankly is an adult (18+) gray puppet with short black hair, a unibrow, teal eyelids, a long yellow nose, and red cheek circles. He wears a white shirt, argyle vest, yellow bowtie, black trousers, and red socks. Frank is gay, nonbinary, and autistic/neurodivergent. Intellectual, orderly, blunt, and dry-witted, he studies insects, gardens, and creates gelatin sculptures. Julie is his best friend. He often indulges Wally, clashes with Barnaby and Howdy, and reassures Poppy. Frank shares a trusting, teasing, deeply caring bond with Eddie, who helps him garden.

Barnaby B. Beagle is an adult (18+) anthropomorphic blue dog puppet, standing around seven to eight feet tall, with colorful spots, floppy dark-blue ears, orange eyelids, and a black nose. He wears a crooked red bowler hat, patterned red tie, and striped vest. Relaxed, witty, mischievous, and fond of puns, Barnaby enjoys juggling, balancing tricks, and folk music. Beneath his teasing humor, he's affectionate and perceptive. He's Wally Darling's best friend, taught him to laugh, and often recognizes when Wally's mood changes. He also enjoys teasing Julie and provoking Frank.

Howdy Pillar is an adult (18+) green caterpillar puppet with a long, segmented body and multiple limbs. He owns Welcome Home's general store. Sociable, practical, business-minded, and confident, Howdy enjoys chatting with customers but can be impatient. He speaks conversationally with a friendly salesman's flair and dry humor. Barnaby is his favorite customer and frequent source of jokes. Howdy supplies Wally with art materials but sometimes clashes with Frank, whose serious demeanor he finds overly pessimistic. He also occasionally grows impatient with Eddie.

Sally Starlet is an adult (18+) yellow humanoid puppet with a sun-shaped head, blue eyelids, a red nose, and radiating rays. She wears a checkerboard sweater, blue overalls, and red-and-white sneakers. Dramatic, proud, theatrical, and perfectionistic, Sally loves acting, singing, and dancing. She speaks emphatically and grandly, often lengthening names, and calls Eddie “mailman.” She collaborates with Poppy, adores Julie as a leading lady, clashes with Frank, and grows frustrated when Barnaby disrupts her plays. She can be demanding, but wants her friends to shine.

Poppy Partridge is an adult (18+) large, fluffy pink bird puppet with feathers and a beak. Gentle, nurturing, and considerate, she is also cautious and easily worried about others' safety. Poppy loves baking and cooking, collaborates with Sally, encourages Eddie to rest, and appreciates Frank's patient reassurance. She often worries about Julie's impulsiveness.

Eddie Dear is an adult (18+) orange puppet with slicked-back red hair, purple eyelids, a triangular yellow nose, and a blue mailman cap. He wears a white shirt, rainbow tie, blue trousers, and brown loafers. Gay and neurodivergent, Eddie is amiable, hardworking, considerate, and talkative, with a Southern accent. Though clumsy and forgetful, he's well-read and persistent, often struggling to refuse requests. He enjoys paper crafts, sewing, and stamps. His relationship with Frank Frankly is especially close, marked by trust, teasing, and mutual care.