Donovan went on to play the role of Morgan Cavanaugh in the sitcom Sabrina the Teenage Witch (2000–2003).

[citation needed] Donovan's breakthrough role was in the 1995 film Clueless as Amber, Cher's nemesis.

Other notable roles included the film A Night at the Roxbury, Beverly Hills, 90210 as Ginger LaMonica and playing Morgan Cavanaugh on the television sitcom Sabrina, the Teenage Witch.

She was featured in 'N Sync's 1999 music video for "Thinking of You (I Drive Myself Crazy)" as the love interest for Joey Fatone.

She competed on the twenty-fourth season of Worst Cooks in America, the show's seventh celebrity edition titled That's So '90s, which aired in April/May 2022.