A list of appearances from Meredith Rodney McKay.

Stargate SG-1Edit

• Season 5
  • "48 Hours"

• Season 6
  • "Redemption, Part 1"
  • "Redemption, Part 2"

• Season 8
  • "Moebius, Part 1" (from an alternate timeline)
  • "Moebius, Part 2" (from an alternate timeline)

• Season 10
  • "The Pegasus Project"
  • "The Road Not Taken" (from an alternate reality)

Stargate AtlantisEdit

• Season 1: All episodes.
• Season 2: All episodes.
• Season 3: All episodes.
• Season 4: All episodes.
• Season 5: All episodes.

Stargate UniverseEdit

• Season 2
  • "Seizure"