From Heroes Wiki
Penelope Jean Lovegood III, or "Miss Lovegood" for short, is Doug's dog and Mr. Muggles's girlfriend.
Miss Lovegood comes to Thanksgiving dinner at Noah's apartment with Doug and Sandra. After Doug faints, Miss Lovegood licks him as Mr. Muggles licks Sandra.
- Doug Douglas and Sandra Bennet met each other through their dogs, Miss Lovegood and Mr. Muggles, at the groomer's.
- The character of Miss Lovegood seems to be named after the character "Luna Lovegood" from the Harry Potter series. Luna is a skilled witch. Incidentally, Mr. Muggles is also named after a term from the Harry Potter series.
- Miss Lovegood wears a butterfly barrette in her hair.
Please refer to Theory:Miss Lovegood for fan-created theories and other speculation.