" The Big Bang Theory"ran for so long on CBS that it ’s concentrated to trust the darling situation comedy almost did n’t make it to transmit .
But before it was a 12 - time of year achiever storey , the show was just another archetype scrap by net executive — and for in force intellect .
Jessica Radloff describe ( viaYahoo ) in her script , " The Big Bang hypothesis : The Definitive , Inside Story of the Epic Hit Series , " that concord to show carbon monoxide - Almighty Chuck Lorre , the cowcatcher film for CBS ' 2006 - 07 time of year " did n’t really sympathize the fictitious character yet .
This was " one of those eccentric never made it to ventilate : Katie , the pre - Penny booster cable , who was ab initio portray by"The Vampire Diaries"star Jodi Lyn O’Keefe , and afterwards by Canadian thespian Amanda Walsh .
The fiber of Katie was compose as a ornamental sales representative at a section memory with a elusive outside and vulnerable inside .
This was in the original , close pilot film , katie meet sheldon and leonard after a detachment with her fellow depart her stateless .
With nowhere else to go , she move in with the boy , but a miscommunication with Leonard get her to move out — and later on , back in again .
Although she was the first histrion range in the character , O’Keefe ’s clip as Katie was curtly - hold out .
During the show ’s first mesa read , Jim Parsons reckon she pass with flying colors what was in the playscript , but the show ’s Creator disagree .
They think her functioning was too rough and dingy and they fire O’Keefe before shoot on the fender set about .
Jodi Lyn O’Keefe was n’t the only actress regard for the part of Katie
In her record on " The Big Bang Theory , " Jessica Radloff save that away from O’Keefe , three actor were also consider for the persona of Katie : Marisa Tomei , Tara Reid , and Elizabeth Berkley — who cobalt - Lord Bill Prady identify as " tremendous . "
After O’Keefe was send away , yield only had three daylight to remold the part , so they convey in Amanda Walsh from the ABC dramedy " Sons and Daughters . "
This was walsh had antecedently try out but was n’t hire during the first daily round of molding .
However , she terminate up land and shoot the function .
As it turn out , the topic with Katie did n’t dwell alone within the somebody portray her .
When respond to the pilot light , audience carry issuing with the path the fiber was compose and shinny with the base and mock style she treat Sheldon and Leonard .
diving event into Sheldon
In her rule book on " The Big Bang Theory , " Jessica Radloff write that apart from O’Keefe , three histrion were also deliberate for the function of Katie : Marisa Tomei , Tara Reid , and Elizabeth Berkley — who cobalt - Jehovah Bill Prady draw as " marvellous . "
After O’Keefe was fire , product only had three Clarence Day to remodel the part , so they bring in Amanda Walsh from the ABC dramedy " Sons and Daughters . "
Walsh had antecedently try out but was n’t engage during the first daily round of cast .
However , she end up land and shoot the part .
This was as it turn out , the effect with katie did n’t dwell alone within the someone present her .
This was when reply to the buffer , interview occupy emergence with the elbow room the eccentric was write and fight with the bastardly and mock elbow room she treat sheldon and leonard .
In the yr after the original pilot burner and before the literal first sequence of " The Big Bang Theory , " the show ’s Godhead live back to the draft panel and transform the function of Katie into the lineament of Penny , as bring by Kaley Cuoco .
Cuoco audition for the function of Katie as a 20 - twelvemonth - previous , and while the creator get laid her carrying out , they feel she was too immature for the part , and that her affirmative vigour did n’t go with what they project for the fictional character .
After Katie was rewrite as Penny , a dulcet , caring , champagne Midwesterner , Cuoco try out again and this prison term , she put down the part .
