Karen Starr was the CEO of Starrware, a company founded some time prior to 2003.
- This version of the character is exclusive to the continuity of the television series Smallville and its tie-in and comic book series, Smallville and Smallville Season 11. It is an adaptation of Karen Starr/Power Girl. The original character was created by Gerry Conway, Ric Estrada, and Wally Wood and first appeared in All-Star Comics #58.
- Starrware was mentioned in the episodes "Extinction" and "Fade", along with the webseries The Vengeance Chronicles. Karen Starr was mentioned by full name in the Daily Planet issue (which had been featured in the episode "Homecoming"), included in the Complete Series DVD box set.
- The origin of Karen Starr is unknown.
- Supergirl Recommended Reading
- Action Comics (Volume 1)
- Adventure Comics (Volume 1)
- All-Star Comics (Volume 1)
- Supergirl (Volume 1)
- Superman Family (Volume 1)
- Supergirl (Volume 2)
- Infinity Inc. (Volume 1)
- Power Girl (Volume 1)
- Supergirl (Volume 3)
- Supergirl (Volume 4)
- Supergirl (Volume 5)
- Supergirl and the Legion of Super-Heroes (Volume 1)
- Power Girl (Volume 2)
- Supergirl (Volume 6)
- Worlds' Finest (Volume 1)
- Supergirl (Volume 7)
- Appearances of Karen Starr (Smallville)
- 1 Images featuring Karen Starr (Smallville)
- Quotations by or about Karen Starr (Smallville)
- Character Gallery: Karen Starr (Smallville)
- Daily Planet Commemorative issue (Smallville: The Complete Series DVD box set)
- Smallville (TV Series) Episode: Extinction
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