Before Rooster Teeth was formed, Geoff worked with Burnie Burns, Gus Sorola, Dan Godwin and Jason Saldaña on drunkgamers.com. Along with voicing Grif on Red vs. Blue, Geoff does many walkthroughs for Achievement Hunter, which he is a founder of. Rooster Teeth's guides for getting skill-based achievements along with Jack Pattillo and stars in the first season of Rooster Teeth's web series Immersion. Ramsey was also used frequently in Rooster Teeth Comics (generally written by his wife, Griffon), up until it's conclusion and Rooster Teeth Shorts. Geoff has starred also in Fails of the Weak, Achievement HUNT (now replacing HORSE and PIG) and AHWU (Achievement Hunter Weekly Update).
- His middle name, Lazer, originated when he applied to change his surname to that of his step-father. Upon application, he learned that it would not cost anything for him to change any of his other names at that time.
- Geoff's Xbox Live Account is DGgeoff.
- Out of all the cast of Red vs. Blue, Ramsey is the only one to have served in the military. This is very ironic, considering Grif is ill-disciplined and lazy.