|Rank or Companion position||Warrior|
|Mate||Mallownose and possibly Hawkshade|
|Based off of||Polly|
|Description||gray-and-white she-cat with amber eyes|
Petalfur was one of the first companions to witness the Doctor's first regeneration, along with Blackfoot, but she believes that it was him, unlike Blackfoot.
Despite the apparent dangers the three face on their travels, she remained optimistic and looked forward to what was ahead.
She departed when she had to choose between Mallownose and traveling with the Doctor.