Patty Tolan is one of the four Ghostbusters in the 2016 movie.
She is the practical, street smarts member of the term. She also is a wealth of information on New York city's history.
She being a MTA worker, meets many "characters" in her line of work, but Rowan North takes the cake. One day she noticed him disappear going down the tunnel. While searching for him, she finds a odd sparking device. Then she sees a ghost. She visits the Ghostbusters and asks for their help.
- The role of Patty was originally written with Melissa McCarthy in mind. 
- Patty Tolan's name was a direct nod to McCarthy's Irish ethnicity. 
- Patty Tolan was always meant to the fourth character, a breath of fresh energy, and a powerhouse. 
- In Ghostbusters International #3, on page 6, in panel 5, Patty makes a non-canon cameo as one of the applicants outside.
- ↑ Empire Online "Ghostbusters - trailer breakdown with Paul Feig" 3/9/16 Paul Feig says: "Actually, when Katie and I wrote the script, we had written the role with Melissa in mind, but then I thought I've seen Melissa play a brash, larger than life character. She's done it in my movies before."
- ↑ LA Times "Upset about an all-female 'Ghostbusters'? Screenwriter Katie Dippold makes no apologies" 4/24/16 Katie Dippold says: "Dippold said she originally pictured McCarthy for that role and gave the character an Irish name in a nod to the actress' ethnicity."
- ↑ LA Times "Upset about an all-female 'Ghostbusters'? Screenwriter Katie Dippold makes no apologies" 4/24/16 Katie Dippold says: "To me that fourth character would be this breath of fresh energy, this powerhouse. I think some people think we wrote this character for a black actress. No, we wrote what we thought was a good character and then cast the best person to play her."