The QI presenter will star alongside Harry Potter actor Rupert Grint as his butler Randolph.
Stephen Fry
© Ian West/PA Archive/Press Association Images
Rupert Grint
Super Clyde is the story of a fast food worker (Grint) who decides to become a superhero after inheriting a $100,000-a-month inheritance from his long-dead eccentric uncle.
The show - from Raising Hope creator Greg Garcia - would be the television series debut for Grint, but is still currently in pilot stage and in contention for a series pick-up at CBS.
It was previously reported that Animal Practice star Tyler Labine will star as Grint's older brother.
Grint's character, Clyde, is described as "a well-meaning and sweet yet slightly neurotic guy who never feels like he really fits in".
US TV's most exciting pilots - in pictures:
Harry Potter star Rupert Grint turns unlikely superhero in CBS sitcom pilot Super Clyde. Stephen Fry also stars.
1 of 19
Copyright: Ian West/PA Archive/Press Association Images
