Over the years, Rogue has absorbed many people. Below is the a list of all I could find she had absorbed for certain. There are some its rumored she's absorbed (like Emma) but it was never proven. Please note that for now, this is a list of those absorbed in the comics. The list for X-men Evolution and X-men The Movie is extremely short, and those whom she absorbed in those two things have a basis from someone she absorbed in the comics. TAS was based loosely on the comics, and thus those absorbed also will already be named here.

X-men (past and present)

Archangel (Warren Worthington III)
Beast (Dr. Henry "Hank" McCoy)
Bishop
Colossus (Piotr Nikolaievitch Rasputin)
Cyclops (Scott Summers)
Gambit (Remy LeBeau)
Iceman (Robert "Bobby" Drake)
Longshot
Phoenix (Jean Grey-Summers)
Professor Charles Xavier
Psylocke (Elizabeth "Betsy" Braddock)
Shadowcat (Kathryne "Kitty" Pryde)
Storm (Ororo Munroe)
Wolverine (Logan)

Other Superheros

Ms. Marvel (Carol Danvers)
Thor
Polaris

Villains

Juggernaut (Cain Marko)
Magneto (Erik Magnus Lensheer)
Mystique (Raven Darkholme)
Sabretooth (Victor Creed)
Mr. Sinister (Nathanial Essex)