Portrayed by
First seen
Last seen
Appeared in
Mentioned in
Episode count
Centric episode(s)

Shared centric episode(s)

Non-centric episode(s) featuring flashes

Centric mobisode(s)

Also known as
Date of birth
Date of death
Manner of death
London, United Kingdom
In Australia...
On the plane...
On the island...
Family members
Desmond's friend

S1 - S2 - S3 - MP - S4 - S5 - S6


Donovan was a physicist (presumably a professor of physics) in London and a friend of Desmond's.

Donovan was criticizing a student's thesis on the topic of unpredictability one day when Desmond ran in, soaking wet; this apparently proved a point Donovan was making to the student.

Desmond told Donovan of his belief that he'd been transported back in time and tried to predict a football game's outcome to prove his claim. Donovan was skeptical, and the prediction failed - Desmond had been thinking of a different game. Donovan discouraged Desmond's apparent fantasies and urged him to instead concentrate on the true inportant things in his life. As a result, Desmond soon went shopping for an engagement ring for Penny. ("Flashes Before Your Eyes")


  • The name Donovan is of Irish and Gaelic origin meaning "dark; brown-haired chieftain".
  • Folksinger Donovan (Donovan Leitch b. Glasgow, Scotland) had a hit in 1969 with his song "Atlantis", about the mythical island populated by an advanced civilization that vanished suddenly.
  • He and Daniel Faraday both worked as physicists in England when they met a time-traveling Desmond.