Judy Greer impressed by Katie Holmes

London: Actress Judy Greer is impressed by `Dawson`s Creek` star Katie Holmes and thinks she is the most hardworking person in the industry.

Holmes split from Tom Cruise in June after six years of marriage and she now raises their six-year-old daughter Suri alone, reported Daily Star. "Katie is one of the hardest-working actresses I have ever worked with. She cares so much. She works so hard. She`s early to rehearsal and the last person to leave. "I have just been impressed by her work ethic, honestly and her ability as a single mom, to juggle being an awesome mom. I can barely schedule in a workout and getting to rehearsal," Greer said. PTI