who played the babysitter in malcolm in the middle

There are actually two potential answers to who played the babysitter in Malcolm in the Middle, depending on the episode you’re thinking of:

Melody Perkins: She played the role of Patty Henderson in the season 2 episode “Convention” (episode 13). Patty is a teenager and the boys’ first on-screen babysitter. They compete against each other to impress her, suspecting she might have a grudge against their eldest brother, Francis, who rejected her in the past.

Hayden Panettiere: She played the role of Jessica in season 4, episode 13, titled “Stereo Store.” Jessica is another teenage babysitter the boys find attractive, and the episode revolves around their attempts to impress her and gain access to her older brother’s stereo.