Bandit

Bandit is Angela Martin's cat.

Season 4

After Dwight mercy-killed Angela's cat, Sprinkles, he offers her a cat named Garbage that lived in his barn and is given the name because he eats garbage. When Angela declines Dwight's gift of Garbage, Dwight releases it into another part of the building. (Dunder Mifflin Infinity)

Andy gives Angela a cat later in the season when he is trying to convince her to date him. Andy says that he found a cat wandering around the warehouse and caught it for her. ("Money")

We can assume that the cat Andy gives Angela is Garbage based on appearance and the commonality of when and where Dwight released Garbage with when and where Andy found the cat. Further, it is likely that the cat who Angela calls Bandit in later episodes is also the same cat, with Angela having rejected the name given him by Dwight, since she keeps Bandit in the office, something she had not previously done with any cat. Though the cat is portrayed by different cats from season to season, Angela Kinsley and Jenna Fischer have confirmed that Garbage, Bandit, and the cat Andy gives to Angela are all the same cat.

Season 5

When Dwight sets the office on fire, Angela gets Bandit and yells to Oscar, who is in the ceiling, to "Save Bandit!" Angela then throws the cat up into the ceiling, until it falls down on to the other side of the office. ("Stress Relief")

Pam explains that copiers go through "normal wear and tear", which includes, in a cutaway, Bandit chewing on the wires and being scolded by Angela.

Season 6

Jim tries to prove that he can put a diaper on anything. He does so to Bandit, with Angela looking at him, angered.  

Season 9

When Angela and the Senator become separated, Angela, Phillip, and her many cats, including Bandit move into a small studio apartment ("Paper Airplane").

Bandit is taken away by Animal Control after one of Angela's neighbors reported the number of cats she had which was more than the number of pets allowed in her studio apartment ("Livin' the Dream").