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Calahan [1] was Walter Peck's partner after he became a member of B.U.F.O. (Bureau of Unidentifiable Flying Organisms).


Calahan went along with Peck's plans and never questioned him. After Walter Peck tried to destroy Slimer, he and Calahan were fired for putting the entire B.U.F.O. agency at risk.


  • Calahan's Identification Number is 62614 [2]. It is briefly seen at the end of the episode when the commanding officer fires him and Peck.
  • On page 19 of Ghostbusters Issue #11, Calahan makes a non-canon cameo as one of the patrons in the Roswell's Belda'r Cafe.


The Real Ghostbusters


  1. Walter Peck (2009). The Real Ghostbusters - "Big Trouble With Little Slimer" (1987) (DVD ts. 01:24-01:26). Time Life Entertainment. Peck says: "Don't lose them, Calahan."
  2. Screen cap of name tag


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