Crichton was stretchered off Accor Stadium on a medi-cab a fortnight ago with nerve damage in his neck, but made a triumphant comeback at the same venue on Saturday night to supercharge the Bulldogs' finals hopes.
The 25-year-old's performance - in which he scored a try and kicked three goals - came less than 24 hours after his partner Leone welcomed their first child.
Crichton, returning in the five-eighth role he was re-deployed in midway through this season, grabbed the Dogs' first try of the night when he backed up a Viliame Kikau offload and celebrated with a rocking baby motion.
"He looks pretty good as a five-eighth, I reckon, especially one that didn't sleep," Bulldogs coach Cameron Ciraldo said.
The Crichton try set the wheels in motion for another impressive victory for Ciraldo's men, who have five wins in their last six outings and are knocking on the door for a spot in the top eight.
What pleased Ciraldo the most was Canterbury's desperation in defence, with only a late Chanel Harris-Tavita try preventing the Warriors from going home scoreless.
"We were disciplined, but played with a lot of freedom," Ciraldo said.
"We had to defend for long periods, and the Warriors are a very good attacking team who threw a lot at us and I was happy we turned them away a fair bit."
But while this was a night of celebration for the Bulldogs, the Warriors blew a golden chance to cut Penrith's lead in the race for the minor premiership.
Coach Andrew Webster was visibly angered as his side toiled and the sight of seeing fullback Taine Tuaupiki limping off in a moon boot would have only added to his frustration.
Webster described his side as playing like "headless chooks".
Crichton followed his sixth-minute opener by backing up a Jacob Kiraz break, which led to the Dogs swinging it left and then back to Lachlan Galvin on the right.
Galvin went to his favoured play - a short ball to Jacob Preston - and it worked wonders with the back-rower charging in to give the Dogs a 12-0 halftime lead.
Kiraz scored off a scrum play to push Canterbury further ahead after the break, Crichton missing the touchline conversion but making amends with a penalty goal.
Mitch Barnett was the surprising catalyst for the visitors' sole try in the 75th minute when the prop chipped over the top for Harris-Tavita to regather and score.
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