Pyth - 45 38 35 Bytes

=GwI!:G"a")j-["inky""pinky""blinky""clyde")cG

I!:z\a)j-c:" p bl clyde"d"inky "dcz

-1 more byte thanks to Leaky Nun!

Input must be space delimited, all lowercase; outputs missing ghosts on separate lines unless pac-man is in the input.

Pyth - 45 38 35 Bytes

=GwI!:G"a")j-["inky""pinky""blinky""clyde")cG

j-c:" p bl clyde"d"inky "d?:z\aZYcz

-1 more byte thanks to Leaky Nun!

Input must be space delimited, all lowercase; outputs missing ghosts on separate lines unless pac-man is in the input.

Pyth - 45 38 37 Bytes

=GwI!:G"a")j-["inky""pinky""blinky""clyde")cG

I!:=Gw\a)j-c:" p bl clyde"d"inky "dcG

-1 more byte thanks to Leaky Nun!

Input must be space delimited, all lowercase; outputs missing ghosts on separate lines unless pac-man is in the input.

Pyth - 45 38 35 Bytes

=GwI!:G"a")j-["inky""pinky""blinky""clyde")cG

I!:z\a)j-c:" p bl clyde"d"inky "dcz

-1 more byte thanks to Leaky Nun!

Input must be space delimited, all lowercase; outputs missing ghosts on separate lines unless pac-man is in the input.

Pyth - 45 38 Bytes

=GwI!:G"a")j-["inky""pinky""blinky""clyde")cG

I!:=Gw"a")j-c:" p bl clyde"d"inky "dcG

Input must be space delimited, all lowercase; outputs missing ghosts on separate lines unless pac-man is in the input.

Pyth - 45 38 37 Bytes

=GwI!:G"a")j-["inky""pinky""blinky""clyde")cG

I!:=Gw\a)j-c:" p bl clyde"d"inky "dcG

-1 more byte thanks to Leaky Nun!

Input must be space delimited, all lowercase; outputs missing ghosts on separate lines unless pac-man is in the input.