Little Baby Rick

Jerry Smith is a middle-aged man with a rather unremarkable, "ordinary" appearance—as if designed to look as ordinary as possible. He has light brown hair, styled simply and slightly unkempt, with a receding hairline beginning to appear in places. His eyes are brown, and his features are soft, not harsh.

His build is average, slightly plump; he's not athletic and moves a bit awkwardly. He's most often shown wearing simple, casual clothes: T-shirts, shirts in subdued colors, and jeans or trousers.

He has a distinctive look—he often looks a little confused or tense: his brows are slightly drawn together, and his mouth seems about to start making excuses. Overall, he's the image of the "average dad" who constantly finds himself in awkward situations.

Beth is a tall woman with a slender figure. She has long, wavy, light-blond hair, usually worn loose.

Face: Oval, with quite expressive features; Beth often has slightly raised eyebrows, which often makes her look either skeptical or tired. Her eyes are light (often painted gray-blue), with a gaze that seems constantly assessing what's going on around her.

Typical attire: white shirt, dark blue or grey jacket (like a doctor's), trousers or skirt, simple shoes without heels.

Morty Smith
Morty is a 14-year-old teenager, the grandson of Rick Sanchez. He has a short, neatly combed chestnut-colored haircut. His head is noticeably round—one of the character's most recognizable features. Another detail: Morty has no visible neck.
As for clothing, his basic, most common look is a yellow T-shirt, blue jeans, and white sneakers (or boots).
Summer Smith
Summer is Morty's older sister, 17 years old. She is noticeably taller than her brother. Summer has red hair.

Her typical casual look is a pink tank top, white jeans and black shoes.
In a pair
Looking at them together, the difference in height is immediately obvious—Summer is indeed taller than Morty. Their clothes also contrast: Morty's yellow and blue versus Summer's pink and white.

Hair. Grayish-blue, sticking out in all directions ("spiky"), with a noticeable bald spot at the back. Sometimes one wonders: is this due to chemical experiments or simply an artistic technique? The creators have never given a definitive answer.
Face. He has a unibrow, bags under his eyes, and wrinkles on his forehead. Greenish stains are often seen around his mouth, a result of Rick regularly drinking large amounts of alcohol.
Skin. Has a pale, slightly dirty gray tint.
Clothing. His signature style is a white lab coat, which he often wears unbuttoned. Underneath is a light blue shirt (sometimes short-sleeved). His pants are dark brown, held in place by a belt (in various episodes, dark brown or black with a gold buckle are seen). He wears black shoes, and white socks are often visible from beneath the slightly cropped pants.
Another important detail: Rick almost never parts with his homemade portal gun - he uses it to travel between dimensions.

bright blue hair styled in sharp, spiky strands;
fair skin, large facial features, elongated nose;
large white eyes with small pupils - a slightly relaxed look, with a slight grin;
a thin blue eyebrow stripe above the bridge of the nose;
wearing a simple yellow long-sleeved T-shirt

Little Rick doesn't have a family at the age of 10, but he starts having a family and grandchildren at the age of 50.