Passage: Wheatley is a fictional artificial intelligence from the Portal franchise first introduced in the 2011 video game Portal 2. He is voiced by British comedian Stephen Merchant, and created in part by Portal 2's designer Erik Wolpaw.

Question: Based on this passage, who plays the voice of wheatley in portal 2?
Steam of consciousness below:
The important part for answering this question is: He is voiced by British comedian Stephen Merchant, and created in part by Portal 2's designer Erik Wolpaw.
So, the answer is British comedian Stephen Merchant.