The man befriended the children's family and was a frequent guest to their home in the Queen Street East and Jones Avenue area between 1992 and 2003, according to police.
It was during this time he sexually assaulted two children on numerous occasions, according to police. The children were between the ages of two and 12 and two and seven during the time of the alleged assaults.
Jeremy Nathaniel Gregg, 45, of Toronto, was arrested on Tuesday and charged with:- seven counts of sexual assault.
- seven counts of sexual exploitation.
- three counts of invitation to sexual touching.
During the period of the alleged assaults, police say Gregg worked for Scouts Canada as a Scout leader in Toronto.
Police believe there may be additional victims.
Anyone with information is asked to contact police at 416-808-5500, Crime Stoppers anonymously at 416-222-TIPS (8477), online at 222tips.com, text TOR and your message to CRIMES (274637).