CATS
 "Nikita" (kitten Actually)
 "Charity"
 "Outside The Box" (cat from Nikita`s memories-ep"Nikita)
 "Catch A Falling Star"
 "Toys In The Basement"


DOGS
 "Obsessed"
 "Treason"
 "Mercy"
 "Inside Out"
 "Psychic Pilgram" (one of the Twins walking near the Michael and Nikita`s house)
 "Someone Else`s Shadow"
 "Imitation Of Death" (dogs in cages)
 "There Are No Missions" (man walking outside the store where Michael contacted Nikita)
 "Sympathy For The Devil" (only barking in the background)
 "Toy's In The Basement"
 "Deja vu all over again"


PIGEONS
 "Nikita"
 "I Remember Paris"
 "Before I Sleep"
 "Third Party Rip-Off"
 "There Are No Missions"
 "Toys In The Basement"
 "Let No Man Put Asunder"


SEAGULLS
 "Hard Landing"
 "Old Habits"
 "End Game"
 "Four Light Years Further"


FISH
 "Obsessed"
 "Hand To Hand"
 "Kiss The Past Goodbye" (Adam`s room)


RATS
 "War"


PARROTS
 "Walk On By" (Nikita`s mother Apartment)


WEASEL
 "Toys In The Basement"


RACCOONS
 "Toys in The Basement"


RABBIT-a TOY
 "Time Out Of Mind"