Who's outside the house

Hint 1 of 8:

A key inscribed 'MINE' ... My key ...Mikey

Hint 2 of 8:

A bristly pad on the ground .. floormat ... Matt

Hint 3 of 8:

A short dowell .. a peg .. Peg

Hint 4 of 8:

A doorbell ... bell ... Belle

Hint 5 of 8:

Guys in a car ... Car guys ... car men ... Carmen