Yes, other enzymes such as cholesterol ester transfer protein (CETP) and hepatic lipase (HL) also play roles in the RCT pathway. CETP catalyzes the transfer of cholesterol esters from HDL to low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL) particles, which can then be taken up by the liver. HL, on the other hand, hydrolyzes triglycerides and phospholipids in HDL particles, thereby modulating their size and composition and facilitating the delivery of cholesterol to the liver.