The following is a partial list of characters from Diana Gabaldon's Outlander series as first introduced, beginning with the 1991 novel Outlander. The story focuses on 20th century nurse Claire Randall, who time travels to 18th-century Scotland and finds adventure and romance with the dashing Jamie Fraser. A mix of several genres, the series features elements of historical fiction, romance, adventure, mystery and science fiction/fantasy. In August 2014, the US-based cable channel Starz debuted a TV series adaptation based on the novels.

The following actors have been credited in the opening titles of the television series.

The following actors have been credited in at least three episodes within a season of the television series. Only named characters are listed.

The following actors have been credited in one or two episodes within a season of the television series. Only named characters are listed.