The actor has topped the bill in hit romantic comedies like The 40-Year-Old Virgin and Crazy. Stupid. Love, but he admitted he's not entirely comfortable in roles like those.
"How did I end up in films with people like Keira Knightley and Julianne Moore? All these beautiful leading ladies and me - it's kind of shocking," Carell told Parade.
He also reflected on the many years he spent struggling for acting success and singled out telemarketing as his worst pre-fame job.
"At one point, I was a wine telemarketer. Talking people into buying wine on the phone is not an easy job to begin with, but when you don't know anything about wine and you really don't drink it, it becomes even more difficult," he quipped.
Carrell's Office character Michael Scott also briefly worked as a telemarketer to pay off debts.
He is currently starring with Knightley in Seeking a Friend at the End of the World, opening today (June 22) in the US and on July 13 in the UK.
Watch a trailer for Seeking a Friend at the End of the World below: