Dog Troika is part of a set of five plastic mute egg-shaped toys in the style of a Matryoshka doll.
Toy Story[]
Dog Troika was seen when Slinky was gathering everyone together for a staff meeting. When Sid's voice was heard, the Troikas were so frightened they promptly hid inside Dog Troika.
Toy Story 2[]
Dog Troika also seen in Toy Story 2 when Buster comes into Andy's room and knocks the Troikas over. Buzz later says Dog Troika's name during an emergency roll call. He is last seen listening to Wheezy singing "You've Got a Friend in Me".