- His last name is a reference to Martin O'Donnell, the former Audio Director at Bungie, whose sound studio is called "Ivory Towers."
- It is said that Lance O'Donnell's ghost haunts Ivory Tower level because of the strange noises by the metal door. The strange noises are another reference to Martin O'Donnell, because the sounds are the same as his musical piece Siege of Madrigal, which is playing near the elevator in Ivory Tower.
- Lance is one of Marty's nicknames.
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