Tuck is the deuteragonist of the Wonder Pets! series.
Turtle Tuck is a very sensitive young turtle. He is the heart of the group and he has a deep emotional connection to all living things. Tuck loves to give and receive hugs. Developmentally, Tuck is a four-year-old. He is the least physically advanced of the Wonder Pets. He is an excellent swimmer and demonstrates keen observational skills while out on their adventures.
Tuck has green skin and a dark green shell. His eyes are blue with black pupils. Tuck's hat is similar to that of a sailor - white with a blue stripe and a red top. He has two blue sneakers and a red mouth. His cape is red with the Wonder Pets' logo, a big red 'W', on it.
Tuck appears in every episode of Wonder Pets!. He debuted in the "Save the Dolphin!" episode.