AnnaLynne McCord's Fuzzy Feline

Is it time for a catnap? 90210 actress AnnaLynne McCord holds tight to her cat Mouse as the two arrive at her hit show’s Los Angeles set Wednesday.

Grey’s Anatomy star Katherine Heigl poses with a pup at the “Mutts to Melrose” dog rescue event at Orange Bone pet store in Los Angeles Wednesday. The actress and her husband Josh Kelley were on hand to host the event, which benefited Last Chance for Animals.

Lipstick Jungle star Lindsay Price gets some love from a pooch at Armani Exchange’s “Kiss for a Cause” in New York City on Saturday. The actress was on hand to chat with shoppers, smooch puppies (and babies!) and raise money and awareness for the National AIDS Fund.

Gossip Girl Michelle Trachtenberg, who will soon return to the hit series as troublemaker Georgina Sparks, gets some shopping assistance from her canine companion, Mya, during a stop to Sherman Oaks, Calif., boutique Rumor.

Ryan Gosling knows just where to pet his pooch! The actor and his furry friend George took a lengthy stroll through Hollywood on Friday, stopping to chat with fans along the way.

Nicolette Sheridan walks her playful pup Oliver – watch him chew that leash! – while out for a walk in Los Angeles on Thursday.

Actress Lucy Liu – who looks like she went from the catwalk to the sidewalk! – steps out in New York City on Monday with her chocolate lab Jack.